CONTINUING FOR MICHIGAN EDUCATION … · 2011 NEC Code Change Home Study • 15 hours AMERICAN ELECTRICAL INSTITUTE N27 W23953 Paul Road, Suite 203 • Pewaukee, WI 53072

2011 NEC Code Change Home Study • 15 hours

AMERICAN ELECTRICAL INSTITUTEN27 W23953 Paul Road, Suite 203 • Pewaukee, WI 53072

www.AEItraining.comCourse approval number: 12-124-11

CONTINUING E D U C AT I O N

FOR MICHIGAN ELECTRICIANS

DISCLAIMER NOTE: This course is APPROVED by the Michigan Department of Energy, Labor & Economic Growth Electrical Division for continuing education to renew your electrical license and is not intended to replace or supersede any state or local adopted codes.

2 American Electrical Institute © 2014

The 2011 Code has added 3 new articles:(1) Article 399: Outdoor Overhead Conductors over 600 volts(2) Article 694: Small Wind Electric Systems(3) Article 840: Premise Powered Broadband Communications Systems

For the 2011 Code, a new annex has been added: Annex I gives the recommended tightening Torque Tables from UL Standard 486A-B

In the 2011 Code, the term grounding conductor has been changed to better explain and to clarify its function with regards to articles 770, 800, 810, and 840. The new terms are:

(1) Grounding Electrode Conductor(2) Bonding Jumper(3) Bonding Conductor

ARTICLE 90.5 (C)

This section has been changed from Fine print Note to the term Informational Notes. Informational Notes are not enforceable as required in this code. Subdivision D has been added to clarify Informational Notes with regards to the Annexes.

90.5 (D) Informative Annexes Added.

Informative annexes. These annexes provide Non-mandatory Information with regards to the use of this code and are not enforceable. They were added for informational purposes only. The informative annexes include:

Informative Annex: A Product Safety Standards Informative Annex: B Application Information for Ampacity Calculation Informative Annex: C Conduit and Tubing fill Tables Informative Annex: D Examples Informative Annex: E Types of Construction Informative Annex: F Critical Operations Power Systems Informative Annex: G Supervisory Control and Data Acquisition (SCADA) Informative Annex: H Administration and Enforcement Informative Annex: I Recommended Tightening Tourque Tables UL 486 A-B

2011 Code ChangesThe following course will summarize many of the

important changes to the NEC code.

InformationalNotes

American Electrical Institute © 2014 3

1. If you were to install a Small Wind Electric System using the 2011 Code, what article would you reference for the install?A) 250 B) 399 C) 694 D) 840

2. An installation performed under the 2011 code using outdoor Overhead Conductors over 600 volts would require looking at section _______?A) 110 B) 399 C) 694 D) 840

3 An installation for a premise powered broadband communication system would require looking at article ________ of the 2011 Code.A) 399B) 420 C) 694 D) 840

4. The information contained in Annex I would allow for the proper _______ to be applied to a specific type of equipment.A) Torque B) Spec C) Range D) Load

5. The language Grounding Conductor has been changed to Bonding Jumper, Bonding Conductor, and Grounding Electrode Conductor to better clarify its function with regards to other articles.A) True B) False

6. The 2011 Code has changed Fine Print Notes to ____________.A) Informal Thoughts B) Links C) Suggested Information D) Informational Notes

7. If you wanted to know a specific tightening tourque, what annex in the 2011 Code would you look at?A) A B) C C) D D) I

8. Non-mandatory information that pertains to certain installations can be found in the ________.A) C stopB) Informative annexes C) OSHA 10 D) OSHA 30

9. What Informative annex would you use to find information regarding the enforcement and administration of this code?A) DB) H C) S D) T

10. If you were looking for information on certain product safety standards, what informative annex would you look?A) A B) B C) C D) D

11. Informative annex D contains ________ of Code Calculations that can be applied to various sections of this Code.A) Tables B) Pictures C) ExamplesD) Graphs

12. The informative annex showing how many No. 12 RHH conductors that can be installed in a 2” EMT would be?A) C B) G C) L D) M

Exam Questions:


13. To find the ampacity of a multiconductor cable containing no more than 3 insulated conductors rated 0 to 2000 volts in a free air application, Informative annex _______ would be used.A) AB) B C) L D) S

14. If you needed to find information regarding types 1 through 5 construction, Informative annex ________ is where you would look in the new 2011 Code.A) A B) C C) E D) M

15. Often, Critical Operations Power systems are of the upmost importance that downtime of these systems can have a massive impact to security, economy, and mission that Informative annex ________ should be taken into consideration when performing this work.A) F B) G C) I D) S

16. Before the installation of a SCADA system, a risk and maintenence study needs to be performed. Information with regards to how such a system can be designed and installed can be had by looking at Informative annex ________.A) G B) S C) L D) T

17. The recommended tightening torque tables listed in the 2011 Code are based on UL standard __________ A-BA) 468B) 486 C) 533 D) 864

ARTICLE 100—Definitions: Ampacity.The maximum current in amperes, that a conductor can carry continuously under the conditions of use without exceeding its temperature rating. The word maximum was added to this definition for clarification.

ARTICLE 100—Definitions: Arc-Fault Circuit Interrupter (Afci).A device intended to provide protection from the effects of arc faults by recognizing characteristics unique to arcing and by functioning to de-energize the circuit when an arc fault is detected. The definition of this has been moved from article 210.12(A) to where it is located now which is Artile 100 definitions.

ARTICLE 100—Definitions: Automatic.Performing a function without the necessity of human intervention.The definition has been revised and simplified to be consistent with other 2011 Code definitions.

ARTICLE 100—Definitions: Bathroom.An area including a basin with one or more of the following: a toilet, a urinal, a tub, a shower, a bidet, or similar plumbing fixtures.The 2011 Code has revised this definition to include the terms Bidet, urinal, and similar plumbing fixtures.


18. Ampacity is the ____________ current a conductor can handle continuously and not surpass its temperature rating.A) Average B) Maximum C) Least D) New

19. Before Arc-Fault Circuit Interrupter (AFCI) was moved to Article 100 definitions, it used to exist in article ___________.A) 250.43 B) 210.3 C) 210.12(A) D) 100

20. The ability to perform a function without _________ intervention would be considered automatic.A) Human B) Divine C) NaturalD) Required

21. For An area to be considered a bathroom, it shall contain a ________.A) Sink B) UrinalC) Shower and toilet D) Shower, bidet, urinal, sink, or toilet

22. When installing a separately derived system, do the requirements of this code call for the use of a Bonding Jumper System?A) Yes B) No

23. As stated in the 2011 Code, the term Grounding Conductor has been ________.A) Added B) Revised C) Deleted D) None of the above

24. The 2008 code had the definition of Ground Fault located in article _______.A) 210B) 250.2 C) 310.4 D) 430.2

ARTICLE 100—Definitions: Bonding Jumper, System.The connection between the grounded circuit conductor and the supply-side bonding jumper, or the equipment grounding conductor, or both, at a separately derived system.Article 100 definitions: Grounding Conductor-DELETED.The 2011 Code has deleted the definition Grounding Conductor. The term Grounding Conductor has been replaced with Bonding Conductor or Grounding Electrode Conductor.

ARTICLE 100 Definitions: Ground Fault.An unintentional, electrically conducting connection between an ungrounded conductor of an electrical circuit and the normally non–current-carrying conductors, metallic enclosures, metallic raceways, metallic equipment, or earth.The definition of Ground Fault used to be located in article 250.2. The 2011 Code has moved the definition to article 100 with no changes in verbiage.

ARTICLE 100 Definitions: Intersystem Bonding Termination.A device that provides a means for connecting bonding conductors for communications systems to the grounding electrode system.This definition has been revised to indicate communication systems are now to be connected to the grounding electrode system, and that connection can be made at any point. Examples of these systems are CATV, Telephone, Network Broad band, and satellite TV.

Exam Questions:


25. True or False, A CATV system is now required to be connected to the Grounding Electrode System.A) True B) False

26. If installing a telephone system in a residential application, you need to bond that system to the ______of the residence to which you are installing the phone system.A) Window seal B) AC unit C) Furnace D) Grounding electrode system

ARTICLE 100 Definitions. Kitchen.An area with a sink and permanent provisions for food preparation and cooking.Kitchen has been revised by adding the word provisions and deleting the word facilities.

ARTICLE 100 Definitions. Separately Derived System.A premises wiring system whose power is derived from a source of electric energy or equipment other than a service. Such systems have no direct connection from circuit conductors of one system to circuit conductors of another system, other than connections through the earth, metal enclosures, metallic raceways, or equipment grounding conductors.A Separately Derived System has been revised to indicate that there will be no direct connection of the circuit conductors of the two systems. The only connection allowed is between the bonding and grounding conductors.

ARTICLE 100 Definitions: Service Conductors, Overhead.The overhead conductors between the service point and the first point of connection to the service entrance conductors at the building or other structure.This is a new definition added in the 2011 Code to indicate the conductors that route through a riser and exit through a weather head. The term service drop now makes it clearer that those are the overhead conductors from the utility to the service point. The service point is where the connection is made between the service overhead conductors and the service drop conductors from the utility.

ARTICLE 100 Definitions: Service Conductors, Underground.The underground conductors between the service point and the first point of connection to the service-entrance conductors in a terminal box, meter, or other enclosure, inside or outside the building wall.This is a new definition added to the 2011 Code to clarify that underground conductors are not always controlled by the utility, and they shall be installed as per the NEC. These are the conductors from the load side of the utility transformer to the service entrance conductors.

ARTICLE 100 Definitions: Uninterruptible Power Supply.A power supply used to provide alternating current power to a load for some period of time in the event of a power failure.This is a new definition added to the 2011 Code to cover (UPS) systems that provide AC current to equipment in a power loss condition. With the more frequent use of sensitive electronic equipment controlling safety systems, it more important than ever to provide an Uninterruptible Power Supply to keep such electronic systems from crashing and causing disruptions to those critical systems.


27. A kitchen shall contain permanent areas having a ____________.A) Sink, food prep and cooking area B) Closet C) Refrigerator D) Dishwasher

28. Under certain circumstances, the phase conductors of two separately derived systems can be directly connected.A) TrueB) False

29. Overhead Service Conductors route through a vertical riser and exit by means of a ________.A) Grommet B) Conduit C) Weather head D) Ladder

30. The point where the connection between the Overhead service Conductors and the service drop conductors terminate is known as the ________.A) Service point B) Dead zone C) Live wire D) Gravity zone

31. Are the conductors from the load side of the utility transformer to the service entrance conductors considered the utility’s jurisdiction when run underground?A) YesB) No

32. Uninterruptible Power Supply’s are usually installed to provide ______ current to critical systems and devices.A) Direct B) Focused C) Alternating D) Random

ARTICLE 110.3(A)(1) Informational Note.A new sentence was added and reads as follows: Special conditions of use or other limitations and other pertinent information may be marked on the equipment, included in the product instructions, or included in the appropriate listing and labeling information.

The revision to this note now takes into account any special conditions that may affect the operation of any such equipment like temperature, weather and power requirements. With the addition of this sentence, the installer is now aware of any special requirements that the manufacturer requires prior to installation that will affect performance and longevity of the equipment.

ARTICLE 110.10 Circuit Impedance, Short circuit Current Ratings and other characteristics.This section was revised in the 2011 Code. The wording Short Circuit current rating was added to the title to make clear the intent of this section. This section requires that equipment installed will have its short circuit rating equal or larger than the available short circuit current of the source. This is safety measure in the event of a ground fault condition.

ARTICLE 110.14 Electrical Connections.Connectors and terminals for conductors more finely stranded than Class B and Class C stranding as shown in Chapter 9, Table 10, shall be identified for the specific conductor class or classes. Finely stranded wire does not fit in your standard pressure connector or terminal correctly. If you were to use a standard type connector not rated for finely stranded wire, this would result in a poor and possibly hazardous termination.The new chapter 9 table 10 was added for these types of finely stranded conductors.

Exam Questions:

InformationalNotes


33. With the addition of this sentence to the existing informational note in Article 110.3 (A)(1), all equipment shall be installed to the _________ requirements.A) AHJ B) Local municipality C) NEC D) Manufacturers

34. True or false, the manufacturer’s special conditions requirement can be ignored by a field installation call.A) True B) False

35. In the event of a ground fault condition, a piece of equipment shall have its short circuit rating be less than the available fault current from the source.A) True B) False

36. The new table in chapter 9 for finely stranded wire is table________.A) 10 B) 9 C) 5B D) 5A

37. If using finely stranded wire and you don’t have terminals or connectors as stated in Table 10, then the use of standard terminals and connectors is encouraged.A) True B) False

ARTICLE 110.16 Arch Flash Hazard Warning.The title of this section was changed in the 2011 code from Flash protection to Arc Flash Hazard Warning. The requirement of this section is to apply a label to equipment like panel boards, switchboards, meter sockets industrial control panels, and motor control centers where servicing may be required. The label shall be installed in an area clearly visible to the qualified person to warn of the potential hazard when servicing. This type of label is not required in dwelling units.

ARTICLE 110.24(A) Available Fault Current.This new section was added in the 2011 Code. This section requires service equipment to be field marked legibly with the maximum fault current available as well as the date the calculation was performed. This label must also to be able to stand up to the environment in which the service equipment is installed.Section (B) of 110.24 requires that if any modifications take place to this system, a new label with the information described in section A is to be added. Dwelling units do not require this label.

ARTICLE 110.26(A)(3) Height of Working Space.The height requirement for electrical equipment with regards to working space is a minimum of 6 1/2 feet or the height of the equipment whichever is higher. If other equipment is installed below or above the electrical equipment, it cannot extend more than 6 inches beyond the front of such equipment.The 2011 Code has added a new exception (2): which allows a meter to extend more than 6 inches into the dedicated space for the electrical equipment. The meter socket is still limited to the 6 inch rule; additionally, exception(1): allows us to install electrical equipment in spaces less than 6 1/2 feet if in an existing dwelling and the panelboard is less than 200 amps.

ARTICLE 110.26(D) Illumination.The Code now requires that all spaces containing service equipment, panel boards, switchboards, and motor control centers be illuminated, and that the illumination in these areas cannot be controlled by automatic means only. If the room has only automatic control for lighting, then a manual override shall be installed.


38. An arc flash warning ________ is not required for dwelling units.A) Label B) Light C) HornD) Strobe

39. An arc flash warning label is required to be installed in a ________ visible location to the qualified person.A) Obstructed B) Low C) Clearly D) New

40. A Motor Control Center requires an arc flash warning label.A) True B) False

41. The ________ the fault current calculation was performed as well as the maximum available fault current need to be listed on this label.A) Location B) Date C) Department D) Unit

42. If the service equipment is installed in a corrosive area, the label must be designed for that environment.A) TrueB) False

43. A service was just upgraded with a new breaker. Section B would then require a new __________ be installed with the same information as required by section A of this Code.A) Disconnect B) Set of conductors C) Set of CT’s D) Label

44. A new dwelling unit has just been built and brand new service equipment installed. Does this section require a label with the maximum available fault current to be installed as describes in this section?A) Yes B) No

45. What is the minimum working height space for electrical equipment?A) 5 1/2 feet B) 6 feet C) 6 1/2 feet D) 7 feet

46. A meter is now allowed to extend more than ________ inches into the work space.A) 2 B) 4 C) 5 D) 6

47. A meter socket is allowed to extend more than 6 inches into the work space.A) True B) False

48. A piece of equipment has been installed that is 8 Ft. tall. As required by this section, how tall would the work space need to be to accommodate this equipment?A) 5 ft. B) 6 1/2 ft. C) 7 ft. D) 8 ft.

49. A gutter needs to be installed above a meter socket to accommodate multiple tenants. The gutter section extends 7 inches into the working space reserved for the equipment. According to this section, would this be acceptable or a violation?A) AcceptableB) Violation

50. An existing dwelling needs a 100 amp panel installed. However, the available working space is only 6 feet. According to this section, would this be considered a an acceptable installation or a violation?A) Acceptable B) Violation

51. A room that is used for storage has a panel board installed in this space. Does this room need to be illuminated?A) Yes B) No

Exam Questions:


52. An electrical room that houses all a buildings service equipment contains motion activated lighting ONLY. As described in this code, would that be considered acceptable or a violation?A) Acceptable B) Violation

53. A schools main electrical room that houses all its service equipment contains a motion activated lighting system that is also equipped with a manual override for the lighting in the room at each entrance location. Would this be considered acceptable or a violation according to the code?A) Acceptable B) Violation

54. Section 110.28 and its corresponding table have been moved from section ________.A) 110.20 B) 110.23 C) 110.34 D) 110.5

55. The enclosure types listed in table 110.28 only apply to enclosures ________ volts and below.A) 240 B) 300 C) 480 D) 600

56. The numbers and letters listed in table 110.28 are used to designate the type of ________ an enclosure should be installed.A) Building B) SpaceC) Environment D) Room

57. Table 110.28 changed when it was moved from section 110.20.A) True B) False

58. Electrical vaults are required to provide a ________ hour fire rating.A) 2B) 3 C) 7 D) 8

59. Would the construction of an electrical vault from studs and wallboard be considered acceptable or a violation?A) Acceptable B) Violation

ARTICLE 110.28 Enclosure Types.Section 110.28 as well as the 110.28 table has been relocated from section 110.20. This section pertains to enclosure types. While the table has not changed, the verbiage of section 110.28 has added a host of new enclosure types that must be marked with the number and letter classifications listed in the 110.28 table. The numbers and letter are used to designate the type of environment and location an enclosure can be installed. This table and number letter designations apply to enclosures 600v and less.

ARTICLE 110.31(A) Electrical Vaults.Electrical vaults for electrical systems 600 volts or greater has been re-organized in the 2011 Code. All electrical vaults will be so constructed as to give a 3 hour fire rating for such a vault. The use of concrete is the acceptable method for construction. Stud and wall board construction for an electrical vault is not acceptable. A new exception allows Vaults to now be so constructed for the roofs and walls to allow a 1 hour fire rating provided an automatic fire suppression system is installed. Transformer requirements now point us to part III of article 450.

Exam Questions:


ARTICLE 200.2(B) Continuity.Informational note: See 300.13(B) for the continuity of grounded conductors used in multi-wire branch circuits.A new informational note was added for the 2011 Code. This note now points us to section 300.13(B) with regards to continuity of the grounded conductor in a multi-wire branch circuit. This section simply states that if the grounded conductor was disconnected for any reason at a device, it shall not affect the grounded conductor downstream for any other devices. A device connection is not acceptable to ensure that the neutral can maintain continuity. Wire nut the neutral before connecting it to any device as to ensure the integrity of the neutral if a device were to fail for any reason.

ARTICLE 200.4 Neutral Conductors.This is a completely new section added for the 2011 Code. This new section makes clear that the neutral conductor shall not be used for more than one multi-wire branch circuit, branch circuit, and ungrounded feeder conductors. There are other areas in this code where this practice is acceptable, but shall only be used where specifically allowed.

ARTICLE 200.6(D) Grounded Conductors of Different Systems.If the (Neutral) Grounded Conductor of different systems shares the same raceway, then each system grounded conductor must be identified independently by system. A color scheme was required by the 2008 code as well as a permanent way of marking posted on the panelboards from which the grounded conductor was sourced. The 2011 Code allows for an alternate method for this marking as long as the information is documented in a manner that is readily available. This means that the permanent method of marking is now not required as long as the information is documented and readily available.

ARTICLE 210.4(B) Disconnecting Means. Multi-wire Branch Circuit.For the 2011 Code, a new informational note was added that directs us to 240.15(B) for the use of single pole breakers when installing multiwire branch circuits. This section allows the use of single pole breakers on multiwire branch circuits provided they have identified handle ties. A multiwire branch circuit would be 2 or 3 ungrounded conductors sharing a common neutral. For example: Black, Red, Blue and one common white neutral. A multiwire branch circuit sharing a common neutral is not just for a multiwire cable. Three individual conductors sharing a common neutral in a raceway is also considered a multiwire branch circuit and subject to this code. When one phase trips, the code requires the other phase conductors to be disconnected as well. Article 240.15(B) allows us to use single pole breakers also instead of just 2pole and 3pole breakers.

60. If an electrical vault has a fire suppression system installed, it can now have its structure designed and built to provide a ________ hour fire rating.A) 1 B) 2C) 3D) 5

61. Article 110.31(A) points us to part ________ of article 450 for additional requirements for transformers.A) IIB) III C) IV D) VII

62. Construction of an electrical vault is for systems 600 volts and ________.A) Larger B) Lower

63. True or False, Concrete is not an acceptable method of construction for an electrical vault.A) True B) False


64. A new ________ note was added to article 200.2(B) with regards to the grounded conductor.A) Fine print B) Disclosure C) Informational

65. Would connecting a neutral directly to a device to ensure continuity downstream be considered acceptable or a violating?A) Acceptable B) Violation

66. An acceptable method to ensure the integrity of the grounded conductor (neutral) to devices downstream would be to wire nut the grounded conductor together before connecting it to a device.A) True B) False

67. The new informational note added to article 200.2(B) now directs us to look in ________ with regards to continuity of the grounded conductor in a multiwire branch circuit.A) 202.4 B) 250.66 C) 300.13 D) 300.13(B)

68. Article ________ was added to the 2011 Code to specify how a neutral can be used with regards to a branch circuit, multi wire branch circuit, and ungrounded feeder conductors.A) 200.3 B) 200.4 C) 220 D) 318

69. Under no circumstance will a neutral be allowed to be used for more than one branch circuit, multiwire branch circuit, or set of ungrounded feeder conductors.A) True B) False

70. When the grounded conductor of mutiple sources share the same raceway, a permanent marking is no longer required on the panelboard as long as the information is documented and readily ________.A) Used B) ExplainedC) Available D) Accessed

71. The 2011 Code still requires a panelboard to have a permanent label installed indicating where the grounded conductor is sourced when sharing a common raceway with other grounded conductors from different sources.A) True B) False

72. Article 210.4(B) informational note now directs us to section ________ .A) 240.10 B) 240.12C) 240.15(B) D) 230.5

73. True or False, a multiwire branch circuit is only considered such if it is a factory produced cable containing ungrounded conductors sharing a single grounded conductor.A) TrueB) False

74. When installing a multiwire branch circuit, would this code consider the use of single pole breakers for the ungrounded conductors without identified handle ties acceptable or a violation?A) Acceptable B) Violation

75. Is it acceptable or a violation for multiwire branch circuit phase conductors to terminate on a 2 pole or 3 pole breaker?A) Acceptable B) Violation

76. True or false, a branch circuit is considered a multiwire branch circuit when two or more ungrounded conductors share a common neutral.A) True B) False

Exam Questions:


77. Would it be acceptable or a violation for the ungrounded conductors to be identified by phase or line?A) Acceptable B) Violation

78. The 2011 Code has revised section 210.5(C) to include ________ separate requirements for identifying the ungrounded Conductor.A) 1 B) 2 C) 3 D) 11

79. Is the use of marking ungrounded conductors with marking tape acceptable or a violation?A) Acceptable B) Violation

80. According to this code, is it required or suggested that the panel board have a permanent marking to indicate the identification of the ungrounded conductors.A) Suggested B) Required

81. LEDs are permitted to be used on circuits that are ________ volts or less to ground.A) 277 B) 480 C) 600 D) 1000

82. LED stands for? A) Light Escaping Device B) Large Electric Device C) Large Echoing Discharge D) Light Emitting Diode

ARTICLE 210.5(C) Identification of Ungrounded Conductors.This section has been revised to now indicate 3 separate requirements when identifying the ungrounded conductors. The requirements are as follows:

(1) Application: the ungrounded conductors shall be identified by phase or line.(2) Means of Identification: the permitted methods are marking tape, color coding, tagging or other approved methods.(3) Posting of Identification means: A permanent posting at the panelboard where the circuits are sourced.

This change makes it clearer to the reader and easier to meet the requirements as described in this code.

ARTICLE 210.6(C)Light emitting Diodes (LEDs) have now been incorporated into this code revision where it addresses the code requirements for luminares. LEDs are very efficient and reduce the cost to operate over their incandescent counter parts. These are solid state devices that convert electrical energy into a single color light. These apply to circuits that are 277 volts or less to ground.

ARTICLE 210.8 Ground Fault Circuit Interrupter Protection for Personnel.Ground Fault circuit interrupters are required to be installed where a shock hazard is the greatest. A Ground Fault circuit interrupter is required to be readily acceptable. This section applies to Ground Fault circuit interrupters installed in dwellings and public places. A Ground Fault circuit interrupter should be tested regularly to ensure the proper operation.

ARTICLE 210.8(A)(7). Ground Fault Circuit Interrupter within 6 Feet of a Sink.The 2011 Code recognizes sinks may be installed in a dwelling unit other than in traditional areas. The Code requires all receptacles installed within 6 feet of a sink other than kitchens to be GFCI protected.

Exam Questions:


83. An LED is a ________ state device that emits light of a single color.A) Air B) Sound C) Solid

84. A Ground Fault circuit interrupter is required where a ________ hazard potentially exists.A) Acceptable B) Shock C) New D) Old

85. As a matter of safety, a GFCI should be ______ regularly to ensure its proper operation.A) Tested B) Used C) Replaced D) Re-designed

86. A GFCI is only required in dwelling units.A) True B) False

87. Would it be considered acceptable or a violation if a GFCI was installed behind a refrigerator.A) AcceptableB) Violation

88. This Code requires a GFCI receptacle to be installed within ________ feet of a sink.A) 6 B) 7 C) 8 D) 9

89. In a dwelling, a receptacle is required to be GCFI protected within 6 feet of a sink other than in a _______.A) BedroomB) Closet C) Kitchen D) Rec. room

ARTICLE 210.8(B)(6) GFCI Protection Other than Dwelling Units. Indoor Wet Locations.Commercial areas where daily a washdown of the facilities occurs or the nature of the business is wet, all 125v 15 and 20 amp receptacles are required to be GFCI protected. When people use hoses to wash down their work area, they are subject to shock hazards associated with this activity. The GFCI requirement is to protect personnel from this shock hazard.

Article 210.8(B)(7) GFCI Protection for Personnel Other than Dwelling Units. Locker RoomsThis section tells us that locker rooms that have associated showering facilities will have their receptacles GFCI protected. The shower area would not be the only wet area in this facility as many people or clothes may be wet when they finish showering and go to the dressing area. It would not be surprising that all receptacles in these areas will be required by the AHJ to be GFCI protected.

Article 210.8(B)(8) GFCI Protection for Personnel Other than Dwelling Units. Garages, Service Bays and Similar Areas.All 125 volt 15 and 20 amp receptacles outlets in garages, service bays, and similar areas are required to be GFCI protected. This is a significant addition to this code cycle and recognizes the use of equipment and hand tools for these areas. It is likely a liquid may be spilled or brought into these areas and with that likelihood, personnel could be exposed to a shock hazard while using equipment associated with this type of work.

Article 210.12(A) Exception 1&2. Arc Fault Circuit Interrupter Protection. Dwelling Units.Exception (1): A new device will be available that is an AFCI receptacle. This device will look very similar to a GFCI. The AFCI receptacle will be installed as the first device on a branch circuit and provide AFCI protection downstream. The AFCI receptacle can be used for AFCI protection for a branch circuit if the serving branch circuit conductors are installed in EMT, MC, IMC, RMC and steel AC Cable.


Exception (2): will permit the conductors feeding this new AFCI receptacle to be run in non-metallic or metallic tubing as long as it is encased in at least 2 in of concrete to the first outlet. If encased in a minimum of 2 inches of concrete, enough protection will be available to prevent staples, screws, or nails from damaging the conductors feeding this receptacle.

Article 210.12(B) Branch Circuit Modifications or Extensions.Any branch circuits in existing dwellings that were not previously required to be AFCI protected, are now required to the 2011 Code be upgraded with AFCI protection if modified or extended.The Branch circuit conductors providing power to the first AFCI outlet will also need to be protected with EMT, IMC, MC, RMC, or steel type AC. Upgrading the modified circuit with an ACFI breaker or Receptacle could be accomplished with little issue, but protecting the branch circuit conductors to the first AFCI device may present more of an issue.

90. Where indoor wet locations exist due to equipment being washed down or just the nature of the business is considered a wet location, all receptacles shall be provided with ________ protection.A) AFCIB) GFCI C Fault D) Electric

91. A GFCI receptacle is installed to protect ________ from a shock hazard.A) Equipment B) Siding C) Windows D) Personnel

92. A locker room that has an associated shower facility is required to have its receptacles _______ protected.A) AFCI B) GFCI C) Ground Fault

93. A 15amp receptacle is installed in a commercial automotive repair shop, would this receptacle be required to be GFCI protected or not protected?A) Protected B) Not protected

94. A new ________ receptacle should be coming out this cycle and will provide the same circuit protection as the breaker does.A) EFIC B) LMAO C) LOL D) AFCI

95. Would Romex be considered acceptable or a violation to provide the branch circuit power from the electrical panel to the first AFCI Receptacle?A) Acceptable B) Violation

96. Listed non-metallic or metallic tubing can be used to provide the branch circuit power from the electrical panel to the first AFCI receptacle provided at least ________ inches of concrete encase the raceway.A) 2 B) 1 1/4 C) 3/4 D) 5/8

97. The branch circuit conductors feeding an AFCI receptacle must be ________ to prevent staples, screws, or nails from damaging the conductors feeding this receptacle.A) Allowed B) Used C) Protected D) Attached

Exam Questions:


98. True or False, If an existing branch circuit is modified and the 2011 code requires that circuit to be AFCI protected, but the code at which the circuit was originally installed did not, the 2011 Code now requires you to make that circuit AFCI protected.A) True B) False

99. If an existing branch circuit now needs to be upgraded to an AFCI outlet, the branch circuit conductors from the panel to the first AFCI outlet now need to be protected in EMT, IMC, MC, RMC, or steel type AC.A) True B) False

100. A countertop receptacle counts towards the floor line receptacle requirement.A) True B) False

101. Wall spaces that are ________ft. or more in width and unbroken at the floor line require a receptacle.A) 1 B) 2 C) 5 D) 12

102. When measured along a floor line of a wall, no point can be more than ________ft. from a receptacle outlet.A) 3 B) 4 C) 5 D) 6

103. Would it be considered acceptable or a violation to install a standard receptacle face up in a kitchen or bathroom countertop?A) Acceptable B) Violation

ARTICLE 210.52(A)(4). Dwelling Unit Receptacle Outlets. General Provisions. Counter top Receptacles.Receptacles installed at countertop locations that have Fixed Cabinets cannot be counted as the receptacles required at the floor line. All wall spaces that are 2ft. or more in width and unbroken at the floor line by fireplaces, doorways, and fixed cabinets require a receptacle. If measured along a floor line, no point can be more than 6ft. from a receptacle outlet.

ARTICLE 210.52(C)(5). Dwelling Unit Receptacle Outlets. Counter Tops. Receptacle Outlet Locations.This section was revised in the 2011 Code to now include pop up type receptacles that can be installed in counter tops. The section still does not allow a standard receptacle to be installed in a countertop face up. The locations permitted for this new listed pop up style receptacle are kitchens and bathrooms. When these pop up receptacles are closed, they become de-energized and only become energized when in the fully extended position.

ARTICLE 210.52(E)(3). Dwelling Unit Receptacle Outlets. Outdoor Outlets. Porches, Balconies, and DecksIn the 2008 Code, Porches, Balconies, and Decks that were less than 20 square feet were not required to have a receptacle installed. The 2011 Code deleted this provision as it recognized people would run extension cords from inside their dwellings to add holiday lights. The general receptacles inside dwelling are not GFCI protected so the 2008 provision was creating unintended hazards. Now all Porches, Balconies, and Decks regardless of size that are accessible from inside the dwelling require a GFCI protected outlet.

ARTICLE 210.52(G)(3). Dwelling Unit Receptacle Outlets. Basements, Garages, and Accessory Buildings.The 2011 Code has now recognized that accessory buildings usually serve the same function as garages attached and detached, basements, and now accessory buildings that have electric power require at least one 120v 15 or 20 amp GFCI protected outlet. This provision only applies to single family dwellings.

Exam Questions:


104. The 2011 Code now allows a new listed pop-up receptacle assembly to be installed face up in counter tops.A) True B) False

105. When a listed countertop receptacle is installed and in the closed position, the design is such that the receptacle assembly is________.A) Energized B) De-energized C) Hot D) Ready

106. The 2008 code used to allow a Porch, Balcony, and Deck that was less than ________ square feet to not require a receptacle outlet.A) 20 B) 25 C) 30 D) 35

107. A receptacle outlet is required for ________ decks, porches, and balconies regardless of size.A) Some B) Most C) All D) Listed

108. The receptacle now required on all porches, balconies, and decks shall be ________ protected.A) AFCI B) GFCI C) Used D) White

109. At least ________ receptacle outlet is required to be installed in accessory buildings.A) ZeroB) One C) Two D) Three

110. The receptacle now required for accessory buildings shall be _______ protected.A) AFCI B) OCI C) GCFI D) GFCI

ARTICLE 210.52(G)(3). Dwelling Unit Receptacle Outlets. Basements, Garages, and Accessory BuildingsThe 2011 Code has now recognized that accessory buildings usually serve the same function as garages attached and detached, basements, and now accessory buildings that have electric power require at least one 120v 15 or 20 amp GFCI protected outlet. This provision only applies to single family dwellings.

ARTICLE 210.52(I). Dwelling Unit Receptacle Outlets. Foyers.If a foyer is not part of a hallway and has an area that is greater than 60 square feet, it shall have receptacles installed at each wall space that is 3 feet or more in width.

ARTICLE 220.43(B) Track Lighting.The previous versions of this code required that track lighting calculations would be based on 150 volt amps for every 2 ft. of track lighting to be installed. The 2011 Code now allows track lighting calculations to be based on the requirements of the actual lighting track to be installed instead of some over engineered number.

ARTICLE 225(7) Lighting Equipment Installed Outdoors 277v to Ground.Prior to the 2011 Code, luminares over not exceeding 277v to ground were required to be a minimum of 3 ft. away from platforms, windows, and fire escapes for industrial and commercial facilities. The 2011 Code has changed this requirement and now no longer requires this 3 ft. rule. In short, luminares not exceeding 277v to ground can be installed at any distance from any opening in stores, schools, platforms, windows, and fire escapes for industrial and commercial facilities.


111. The new provision regarding accessory buildings only applies to multifamily dwellings.A) True B) False

112. A foyer that is ________ square feet or larger shall fall under the provisions of this code.A) 22 B) 39 C) 55 D) 60

113. An area that is classified as a foyer according to this code shall have a receptacle installed at all wall spaces _______ feet or more in width.A) 1 B) 2 C) 3D) 4

114. The previous version of this code required all track lighting to be installed at 150 volt amps for every ________ ft. of lighting track.ValueA) 2 B) 4 C) 5D) 6

115. If installing a track light system that required the system to be calculated at 75 volt amps for every 5 feet of track, would calculating the load based on the actual track light requirement be considered acceptable or a violation under the 2011 Code?A) Acceptable B) Violation

116. The maximum voltage a luminare can be to ground within 3 feet of any platform, window, or fire escape for industrial and commercial facilities is?A) 277 B) 480C) 600 D) 4160

117. Would it be considered acceptable or a violation for a luminare operating at 277v to ground to be installed within 1 ft. of a main entrance of a grocery store with heavy public foot traffic?A) Acceptable B) Violation

118. When overhead conductors cross a railroad track, a minimum distance of ________ ft. must be maintained.A) 18 B) 24 C) 24.5 D) 25

119. Is it suggested or required that conduits entering from underground be sealed?A) Required B) Suggested

120. This section requires conduits that have conductors installed to be sealed, but it also requires that ________ conduits be sealed as well. This requirement extends to both ends of the raceways.A) RMC B) PVC C) EMT D) Spare

ARTICLE 225.18(5) Clearance for Overhead Conductors and Cables, Overtrack Rails of Rail Roads.For the 2011 Code, a new outside feeder and branch circuit clearance requirement was added with regards to these conductor types crossing rail road tracks. This new rule requires a minimum distance of 24.5 ft must be maintained when crossing railroad tracks. This requirement pertains to the lowest point in the run.

ARTICLE 225.27 Raceway Seals.A new section was added for this code cycle which requires all underground raceways entering a building or structure to be sealed. This section applies to conduits that have conductors as well as spare empty conduits. This applies to both ends of the raceway system.

Exam Questions:


ARTICLE 225.30 Number of Supplies.New requirements for a second building being supplied by a feeder or branch circuit from a different building have been added. This section now requires that when you supply a feeder or branch circuit to a second building, the second building can only supply one feeder or branch circuit back the that first building. This new change allows a multiwire branch circuit to be counted as a single circuit.

ARTICLE 225.52 (C) and (D) Locking-Indicating.This section of the code with regards to disconnects of over 600 volts has been extensively changed. Section (C) has been added to indicate that a disconnect shall be capable of being locked in the open position without any type of a special lock; even if no lock is installed, the disconnect shall remain in the open position. Section (D) tells us that all disconnects shall clearly be able to indicate whether they are in the open or closed (on or off) position.

ARTICLE 225.52 Disconnecting Means Over 600v (E) & (F) Uniform Position-Identification.These new sections were added for the 2011 Code Cycle for disconnects operating at over 600V.Section (E) Uniform Position: All disconnects that are single pole are now required to be designed in such a way that when operated vertically, the up position when throwing the handle is the ON position.An Exception was added to this section which indicates a double throw or a disconnect with more than one ON position does not need to comply with section (E) of this Code.Section (F) Identification: This section requires a permanent plaque or directory be installed at every branch circuit or feeder location disconnecting means which indicates what source and area is being disconnected.

ARTICLE 225.56 Inspections and Tests.All new distribution systems 600v and over are now required to be tested on site before they become energized. A test report which includes all tests that were performed and their outcome shall be given to the Authority Having Jurisdiction. The AHJ must approve that all systems have been tested to their satisfaction before allowing the system that was tested to become energized.

121. If building 1 supplies power to building 2, building 2 at that point can only send ________ branch circuit or feeder back to building 1.A) OneB) Two C) ThreeD) Four

122. Would it be acceptable or a violation to supply a circuit back to a building that it was being fed from provided theses circuits were considered a multiwire branch circuit?A) Acceptable B) Violation

123. Once a disconnect is in the ________ position, no lock will be required to hold it in that position.A) TrippedB) Used C) Open D) Neutral

124. All disconnects shall clearly indicate whether they are in the open or closed (on or off) position.A) True B) False

125. When a single pole disconnect is operated vertically, the up position shall indicate the circuit or feeder is _______.

A) OffB) Open C) TrippedD) On

Exam Questions:


126. If a disconnect has more than one ON position, the up position will always indicate the ON position.A) True B) False

127. A ________ plaque or directory is now required at every disconnect or switch to indicate source and area to which it serves.A) Permanent B) Temporary C) White D) Yellow

128. A distribution system operating at ________volts or greater must have all its components tested before it can be energized.A) 240 B) 300C) 480 D) 600

129. When a test report is completed, the report shall be given to the ________ for their approval.A) AHJ B) CPAC) Engineer D) Owner

130. Would it be considered acceptable or a violation to energize a distribution system operating at 600v or greater before the Authority Having Jurisdiction approves such a system?A) Acceptable B) Violation

ARTICLE 225.70(A)(1) Substations-Warning Signs.This section applies to customer owned substations with regards to signs that are now required at points of access to conductors and raceways, entrances to electrical equipment, and cable tray systems that have High Voltage cable installed in them. Cable tray signs with High Voltage cables installed will have signs spaced no more than 3 ft. apart warning of the hazard. The signs that shall be located at these areas shall read “DANGER-HIGH VOLTAGE.”

ARTICLE 230.6(5) Conductors Considered Outside Buildings.This new addition to the 2011 Code now recognizes that a service mast that passes through an eve of a building has its raceway and conductors considered outside the building. The section also points us to 230.24 which describe clearances required above roofs driveways and the like.

ARTICLE 230.24 Ex No (5) Clearance Above Roofs.The requirements of this new exception allow conductors not more than 300v between conductors to pass over a roof area not less than 3 ft. if the roof area is guarded or isolated and there is no readily accessible access to where the conductors pass. This would mean the roof for which the conductors pass do not have ladders, steps, or stairs that lead to the roof; additionally, if the area was fenced off or enclosed where the conductors pass, this would be considered acceptable as well.

ARTICLE 230.40 Ex. No. 1 Number of Service Entrance Conductor Sets.The 2011 Code has added language requiring the posting of signs at each service disconnect location for a multi-occupancy building. If not more than 6 service disconnects are installed, a permanent plaque will be installed on each disconnect which will state the location of the other service disconnects. If more than 6 service disconnects are installed, then one or more plaques will be installed in a readily accessible location as close to the attachment point of each set of service entrance conductors. These plaques will describe the locations of all service disconnects when there are more than 6.


131. The section, substation-warning signs, applies to ________ owned substations.A) UtilityB) Private C) Customer D) Public

132. A cable tray system has high voltage cables running its full length, the signage requirement is such that every _______ft. of cable tray shall have a sign warning of the hazard.A) 3 B) 4 C) 5 D) 6

133. At points of access to conductors, raceways, and entrances to electrical equipment in substations, they shall have signs in obvious locations that read “_________”.

A) Energized B) Live Equipment C) Hot Conductors D) Danger High Voltage

134. If conductors in a raceway pass through an eve of a building, would they be considered inside or outside the building?A) Inside B) Outside

135. Conductors and raceways that pass through eves on the outside of a building still need to follow the clearances portion of this code.A) True B) False

136. Conductors that pass over a roof at exactly 3 ft would be allowed if the conductors were not over __________ volts between conductor and not readily accessible.A) 300 B) 480 C) 575 D) 600

137. Would it be considered acceptable or a violation if a roof access ladder system was installed where conductors pass over a roof area at 3 ft.A) Acceptable B) Violation

138. An approved method for Conductors that pass over a roof at exactly 3 ft shall also be allowed to do so if the area is ________ off.A) Tore B) Taken C) Fenced D) Rolled

139. A permanent plaque is required to be installed at every disconnect when there are________ or less installed in a multi-occupancy building.A) 6 B) 7 C) 8 D) 9

140. A plaque that indicates the ________ of each service disconnect will be placed on every disconnect when there are 6 or less.A) Color B) Location C) Direction D) None of the above

141. When more than ______ service disconnects are installed in a multi occupancy building, one or more plaques must be installed in a readily accessible location that describe the location of all service disconnects.A) 3 B) 4 C) 5 D) 6

142. When more than six service disconnects occupy a multi- occupancy building, a common plaque needs to be installed as close to the point of attachment for each of the service disconnects indicating their locations.A) True B) False

Exam Questions:


143. Would it be considered acceptable or a violation for a separate set of service conductors to feed a common load house panel in a multi-occupancy building.A) Acceptable B) Violation

144. If the ________ conductor does not connect to an overcurrent device, it can be sized at 100% of the continuous load.A) Phase B) Green C) Grounded D) High leg

145. The reason behind sizing the ungrounded service entrance conductors at 125% for continuous loads when connected to the overcurrent device is to prevent ________ tripping.A) Probable B) Serious C) Multiple D) Nuisance

146. The grounded conductor can be sized at ________ of the continuous load if not connected to the overcurrent device.A) 80% B) 90% C) 95% D) 100%

ARTICLE 230.40 Ex. No. 4 Number of Service Entrance Conductor Sets.This exception has added language including Multi-occupancy buildings.This now allows a separate set of service entrance conductors to power a common area house panel to feed areas like hallways, storage facilities, parking garages, and the like. Common areas like the ones described are now allowed to be fed by common panel board supplied by a separate set of service entrance conductors.

ARTICLE 230.42(A)(1) Exception: Minimum Size and Rating.This new exception allows the grounded conductor to be sized at 100% of the continuous load if is not connected to the overcurrent device.Ungrounded service entrance conductors are required to be sized at 125% of the continuous loads. This is done to prevent heat buildup and prevent nuisance tripping. Since the grounded conductor is rarely connected to the overcurrent device, there is no need to size it to prevent nuisance tripping.

ARTICLE 230.44 Cable Trays.This new revision requires cable trays containing only service conductors to be labeled with the wording Service Entrance Conductors. The labels must be installed the entire length the service cables travel so the conductors can be traced. Service entrance conductors shall be limited to the following methods:

(1) Type SE Cable(2) Type MC Cable(3) Type MI Cable(4) Type IGS Cable(5) Single thermoplastic-insulated conductors 1/0 and larger with a CT rating.

Section 230.66 Marking.The revision to this section now requires that all service equipment shall now be listed and service equipment 600 volts or less shall also be marked to identify that it can be used as service equipment. An individual meter socket enclosure shall not be considered as service equipment according to the NEC.

Exam Questions:


147. Cable trays that contain only service entrance conductors shall be labeled with the wording _______.A) Service CablesB) Service Entrance Conductors C) Cables Service D) Entrance Conductors

148. The service entrance cable installed in a cable tray shall be marked its entire length so the conductors can be________.A) Traced B) Colored C) Meggared D) Supported

149. Type IGS cable is permitted to be used for ________. A) Direct burial B) Messenger wire C) Spas D) Service Entrance Conductor

150. Single thermoplastic-insulated conductors ________ and larger with a CT rating can be used for service entrance conductors.A) 1/0 B) # 4 C) # 1D) # 3

151. Individual meter sockets ________ be considered service equipment.A) Will B) Shall C) Shall not D) Can

152. All service equipment is now required to be ________. A) Rated B) Listed C) Designed D) Natural gray

153. All service equipment __________ volts or less shall also be marked to identify that it can be used as service equipment.A) 600 B) 675 C) 780 D) 1000

ARTICLE 230.72(A) Exception. Grouping of Disconnects.Service disconnects are required to be grouped, but this new marking requirement allows a fire pump disconnect to be mounted remotely away from the other service disconnects. What this code revision does require is a plaque to be posted with the other service disconnects that describes where the fire pump disconnect is located.

ARTICLE 230.82(9) Equipment Installed to the Supply Side of Service Disconnect.This revision pertains to new smart grid systems that are being installed throughout the country. Connections for listed communications equipment under the control of the utility is now able to be connected to the supply side of the service disconnect, or meter socket disconnecting means. This communication equipment can tell the serving utility if customers lose power, monitor power consumption, and even de-energize power to a location if in an emergency situation. This technology will allow the utility to control all power remotely to a single point of connection without having to manually send people to the specific locations.

ARTICLE 230.205(A) Services Exceeding 600 Volts. Disconnecting Means. Location.A disconnecting means for services 600v or greater does not have to be in a readily accessible location when located on private property. However, a readily accessible method to disconnect the service will be provided either through mechanical or an electronic means.


154. A firepump disconnect is allowed to be installed ________ from the other service disconnects.A) In a vault B) Remotely C) In a gated area D) In a locked room

155. A plaque will be located with the other service disconnects that describes the ______ of the fire pump disconnect.A) StreetB) Combination C) Location D) Address

156. New utility controlled communications equipment connects to the _______ side of the service disconnect.A) Load B) FuseC) SupplyD) Breaker

157. Listed communications equipment connected to the supply side of a service disconnect will be under the control of the serving ________.A) Utility B) AHJ C) City D) Corps of engineers

158. The serving utility could remotely disconnect all power to a location if required using their new smart grid communications equipment.A) True B) False

159. A service disconnecting means does not have to be readily accessible for systems over ________ volts if located on private property.A) 300 B) 480 C) 575 D) 600

160. A disconnect that services a system 600v or greater does not have to be readily ____ if located on private property.A) Located B) Accessible C) Used D) Listed

161. Would it be considered acceptable or a violation to have no readily available method to disconnect a service operating at 600 volts or greater.A) Acceptable B) Violation

162. A service disconnect that operates at 600 volts or greater is required to have a readily accessible method to be disconnected either through a mechanical or __________ linkage if located on private property.A) Electronic B) Crank C) Spindle D) Flat

163. The ICEA formula is used to determine the allowable _______ currents for copper and aluminum conductors.A) Eddy B) Hysteresis C) Copper loss D) Short circuit

164. The main function of the ICEA formula is to determine if a conductors________ would be damaged in a short circuit condition.A) Electrons B) Strands C) Insulation D) Valance band

ARTICLE 240.4 Protection of Conductors. Informational Note.A new informational note was added which points to the use of Insulated Cable Engineers Association standards formula (ICEA) when determining the allowable short circuit currents for insulated copper and aluminum conductors. This formula is used to determine if a conductors insulation would be damaged in a short circuit condition.

Exam Questions:

InformationalNotes


ARTICLE 240.15(B)(1) Ungrounded Conductors. Circuit Breaker.Individual single pole circuit breakers can be used for multiwire branch circuits provided that identified handle ties are used and they only serve single phase loads.

ARTICLE 240.21(B)(1) Location in Circuit. Feeder Taps Not Over 10 Feet Long.The 2011 Code has simplified how to determine the size of tap conductors that are 10 feet or less when the conductors leave the enclosure where the tap has been made. The section tells us that we can size the tap conductors at one tenth of the overcurrent device protecting the feeder conductors. Simple division allows us to determine the size of the tap conductors. For example: A 600 amp feeder, a 10 ft tap must be rated at 60amps. (600/10 = 60)

ARTICLE 240.24(E) Location in or on Premises. Not Located in bathrooms.Locating a subpanel in a dormitory bathroom has been added to a location where a subpanel cannot be installed. A dormitory bathroom is used in a similar fashion as a dwelling unit bathroom.

ARTICLE 240.87 Non-Instantaneous Trip.This new section requires that when not using instantaneous trip circuit breakers documentation shall be available to qualified personnel who work on such breakers as to the breakers location. When a breaker is used without an instantaneous trip, three equivalent methods shall be used:

(1) Zone selective interlocking: This method allows an upstream, and a downstream breaker to talk with one another which allows a faster clearing time when needed.

(2) Differential relaying: This method monitors the upstream and downstream breakers current.

(3) An energy reducing maintenance switch: this type of switch allows the qualified individual to set the breaker to an instantaneous trip position.

165. Single pole circuit breakers can be used for multiwire branch circuits provided they only use _____ handle ties.A) New B) Greenlee C) Klein D) Identified

166. Would it be considered acceptable or a violation if 3 single pole circuit breakers were tied together with a piece of number 14 copper for use on a multiwire branch circuit.A) Acceptable B) Violation

167. When tap conductors are ________ ft or less, they can be sized at 1/10 of the feeder conductor OCPD when leaving the enclosure where the tap is made.A) 10 B) 11 C) 15 D) 25

168. Tap conductors that are 10 ft. or less leaving an enclosure that has a 400 amp OCPD for the feeders can be sized at _______ of the 400 amps.A) 1/10 B) 1/15 C) 1/17 D) 1/20

169. Would it be considered acceptable or a violation to use the one tenth rule to size tap conductors if the tap length is 20 ft.A) Acceptable B) Violation

170. A feeders OCPD is 200 amps. What is the minimum size tap conductors rating required if the tap conductors leave the enclosure and are not over 10ft?A) 10 amps B) 15 amps C) 16 amps D) 20 amps

Exam Questions:


ARTICLE 240.91(B) Protection of Conductors in Supervised Industrial Locations.This new addition to the code permits circuits rated over 800 amps to use the next standard size overcurrent device in supervised industrial locations. If using this rule, the conductor’s ampacity rating shall be equal to or 95% of the overcurrent protective device. Additionally, all the equipment where the conductors terminate shall be listed and marked for the application.

ARTICLE 250.2 Supply Side Bonding Jumper.This new definition was added for this code cycle and states: A conductor installed on the supply side of a service or within a service equipment enclosure(s), or for a separately derived system, that ensures the required electrical conductivity between metal parts required to be electrically connected.

ARTICLE 250.21(C) Ground Detectors. Marking.Subsection (C) was added in the 2011 Code. This section requires ungrounded systems to be marked at the source of the first disconnecting means. The marking at this location shall read “Ungrounded System“ and the marking must be legible and able to withstand the environment where it is located.

ARTICLE 250.24(C)(1)&(2) Grounded Conductor Brought to Service Equipment.Some verbiage changes have taken place with regards to this article concerning the grounded conductor. When installed in a single raceway, the grounded conductor cannot be smaller than the grounding electrode conductor selected from 250.66; furthermore, the grounded conductor is not required to be larger than the ungrounded conductors.If the ungrounded service conductors are installed in parallel in more than one raceway, then the grounded conductor must be installed in parallel as well. Table 250.66 will be used to select the grounded conductor based on the size of the largest service entrance conductors and shall not be smaller than 1/0 when run in parallel.

171. Would it be considered acceptable or a violation to install a subpanel in dormitory bathroom.A) Acceptable B) Violation

172. As described in 240.87, how many equivalent methods are listed to limit the energy potential when not using an instantaneous trip breaker?A) 3 B) 4C) 6 D) 9

173. A method that allows an upstream and a downstream breaker to talk with one another which allows a faster clearing time when needed is?A) Energy reducing maintenance switch B) Differential relaying C) Zone selective interlocking

174. A method that monitors the upstream and downstream breakers current is?A) Energy reducing switch B) Differential relaying C) Zone selective interlocking

175. A type of switch that allows a qualified individual to set the breaker to an instantaneous trip position.A) Energy reducing maintenance switch B) Differential relaying C) Zone selective interlocking


176. Would it be considered acceptable or a violation to use the next standard size circuit breaker over 800 amps in a commercial setting.A) Acceptable B) Violation

177. Using the next standard size overcurrent protective device over 800 amps is acceptable only in supervised ________ locations.A) Residential B) Commercial C) Industrial D) Aquatic

178. If sizing conductors to the next standard size OCPD over 800 amps in industrial locations, the conductors need to be sized equal to or _______% of the rating of the OCPD.A) 80 B) 85 C) 90D) 95

179. Equipment used for conductors that terminate when using the next standard size OCPD over 800 amps in industrial locations must be _____ and marked for the application.A) Listed B) Purchased C) Made D) Designed

180. In an industrial supervised location where a 1000 amp OCPD is used, what would be the minimum ampacity of the conductors using article 240.91(B)?A) 730B) 800 C) 900 D) 950

181. The supply side bonding jumper ensures electrical ________ between metal parts.A) Current B) Voltage C) Conductivity D) Power

182. Ungrounded systems are required to be marked at the ________ disconnecting means.A) First B) New C) Second D) Last

183. When marking ungrounded systems, the marking shall legibly read “ ________ .“A) Open system B) Do not touch C) Look out D) Ungrounded system

184. Would it be considered acceptable or a violation to mark an ungrounded system located in a wet corrosive environment with un-protected normal paper?A) Acceptable B) Violation

185. In a single raceway, the grounded conductor cannot be sized smaller than the_________.A) Equipment ground B) Ungrounded conductorC) Grounding electrode conductor D) Equipment grounding conductor

186. The grounded conductor is required to be larger than the ungrounded conductors.A) True B) False

187. The grounding electrode conductor is sized using table_______.A) 250.66 B) 250.122 C) 310.16 D) 430.166

188. Is it required or suggested that when the ungrounded conductors are run in parallel, the grounded conductor will also be run in parallel.A) Required B) Suggested

189. What is the smallest size conductor that can be used for the grounded conductor when it is run in parallel?A) # 1 B) # 2C) # 3 D) 1/0

Exam Questions:


ARTICLE 250.30 Grounding Separately Derived Alternating Current Systems. Informational Note 1.A new informational note has been added which states on site generators are not considered a separately derived system if the grounded conductor (neutral) is solidly connected to the service supplied grounded conductor. What would make

a generator a separately derived system is if a transfer switch also switched the grounded conductor (neutral). A transformer is always considered a separately derived system.

ARTICLE 250.30(C) Grounding Separately Derived Alternating Current Systems. Outdoor Source.If a separately derived system is located outside, a connection to one or more grounding electrodes is required at the source to comply with 250.50. The reason for connecting grounding electrodes to separately derived systems at the source is to protect them from lightning strikes and other voltage spikes that could cause damage to such sources like transformers and generators. By connecting grounding electrodes to sources in this manner, we can limit possible damage from these voltage spikes.

ARTICLE 250.32(B)(1) Buildings or Structure Supplied by a Feeder or Branch Circuit.This section requires that when a branch circuit or feeder is run to a building to supply power, a separate equipment grounding conductor is required to be run with that circuit or feeder. The equipment grounding conductor can be sized using table 250.122. The grounded conductor cannot be used for this purpose in new construction.

ARTICLE 250.52(A)(1) Grounding Electrodes. Electrodes Permitted for Grounding. Metal Underground Water Pipe.A metal water pipe is considered a grounding electrode if it is in contact with the earth for a minimum of 10ft. Additionally, the grounding electrode conductor is still required to connect to the metal water pipe within 5 ft of where it enters the building. The 5 ft connection rule has been moved to 250.68(C) since the 5 ft of water pipe extending out of the building is considered more of a grounding electrode conductor since it is no longer in direct contact with the earth and that portion is not considered a grounding electrode. Only the actual buried water pipe in direct connection with the earth is considered the grounding electrode.

ARTICLE 250.52(A)(2) Metal Frame of the Building or Structure.

Metal frames of buildings and structures can be used as a grounding electrode if at least one structural member is in direct contact with the earth for a minimum of 10 ft. encased or not in concrete and the hold down bolts for a column directly connect to a concrete encased electrode.

InformationalNotes


190. To make a generator considered a separately derived system, a transfer switch needs to switch the ________ conductor.A) Ungrounded B) GroundingC) Grounded D) Phase

191. A transformer is always considered a _________.A) GeneratorB) Branch circuitC) Utility operated deviceD) Separately derived system

192. The grounding electrode connections need to be made at the ________ location.A) Last B) Source C) Property D) Pole

193. Grounding electrode systems help protect source equipment like transformers and generators from voltage __________.A) Spikes B) Lags C) Drains D) Systems

194. Would it be considered acceptable or a violation to run an equipment grounding conductor with a circuit that is feeding a detached garage.A) Acceptable B) Violation

195. An equipment grounding conductor shall be sized using table_______.A) 250.66 B) 250.122 C) 310.15a D) 310.16

196. The grounded conductor can be used to ground a building in a new construction situation.A) True B) False

197. A metal water pipe that has a minimum of ________ ft in direct contact with the earth is considered grounding electrode.A) 5B) 7 C) 8 D) 10

198. The grounding electrode conductor is required to connect to a buried metal water pipe within _________ ft of where it enters a building barring the use of any exceptions.A) 5 B) 6 C) 8 D) 10

199. The part of a metal water pipe that extends into a building could now be considered a ________.A) Grounding electrode B) Grounding electrode conductor C) Electrode D) Bonding jumper

200. Building steel can be used as a grounding electrode if at least ________ ft. of the structure is in direct contact with the earth.A) 6 B) 8 C) 9 ½D) 10

201. Metal frames of buildings and structures can be used as a grounding electrode if at least one structural member is in direct contact with the earth for a minimum of _____ ft. encased.A) 5B) 6C) 10D) 15

202. Hold down bolts used to secure a building column can be used as a grounding electrode if the bolts are connected to the ________.A) Earth B) Concrete C) A PVC pipe D) Concrete encased electrode

Exam Questions:


ARTICLE 250.52(A)(3) Concrete-Encased Electrode.This section concerning concrete encased electrodes has been revised. A 1/2 in diameter 20 ft. long bare or galvanized steel reinforced bar is considered a concrete encased electrode. Separate pieces of rebar tied together that equal 20 ft. would also meet the requirements of a concrete encased electrode. If rebar is not available, a bare #4 copper conductor at least 20 ft long can also be used as a grounding electrode if it is encased in a minimum of 2 inches of concrete laying vertically or horizontally in a footing or column as long as the footing is in direct contact with the earth.A new informational note has been added that indicates concrete with a vapor barrier or other film that separates the concrete from the earth is not considered in direct contact with the earth.

ARTICLE 250.53(A)(3) Grounding Electrode Installation. Rod, Pipe and Plate Electrodes. Supplemental Electrode Required.This general rule requires when a plate electrode, pipe, or driven rod is used as an electrode, a supplemental electrode is required. The electrodes listed in 250.52(A)(2) through (A)(8) can be used as a supplemental electrode. When using a ground rod or pipe as the supplemental electrode, it shall be spaced a minimum of 6 ft. away from the first electrode.Exception: If using a single electrode and the resistance is 25 ohms or less, then a supplemental electrode will not be required.

ARTICLE 250.64(B) Grounding Electrode Conductor Installation. Securing and Protection Against Physical Damage.Grounding Electrode Conductors are now permitted to be installed through framing members. This revision takes into consideration that the framing members adequately protect the grounding electrode conductor from physical damage.

ARTICLE 250.64(D)(1) Grounding Electrode Installation. Service with Multiple Disconnecting means Enclosures. Common Grounding Electrode Conductor and Taps.A service that has multiple grounding electrode taps due to multiple disconnects shall connect to a common grounding electrode conductor that is connected to a common busbar for these connections. The busbar shall be at least 1/4 in. x 2 in. aluminum or copper and shall be securely fastened in an accessible location. The connections to this busbar shall be made by a listed connector or by exothermic welding.

ARTICLE 250.68(C) Conductor and Bonding Jumper Connection to Grounding Electrodes. Metallic Water Pipe and Structural Metal.This Code cycle has added a new section allowing a buried metal water pipe that enters a building within 5 ft. to bond directly to building steel that is above ground. This provides a path to the grounding electrode and provides a way to tie everything into the grounding electrode system.The metal water pipe within 5 ft of entering the building is now permitted to be used as a conductor path to connect all electrodes together that are part of the grounding electrode system. The buried metal water pipe that is in contact with the earth can only be considered an electrode if it is in direct contact with the earth for a minimum of 10 ft.


203. A piece of rebar 20 ft. long meets the requirement for a concrete encased electrode provided the rebar is a minimum ________ in diameter.A) 3/8 inB) 1/2 in C) 1/4 in D) 3/16 in

204. A concrete encased electrode must be a minimum of ________ ft. long.A) 16 B) 17 C) 18 D) 20

205. Would it be considered acceptable or a violation to tie 2 11’ pieces of rebar together with tie wire and use that as a concrete encased electrode provided the 2 pieces of rebar tied together were over 20’ and the rebar was 1/2 inches in diameter.A) Acceptable B) Violation

206. A piece of # ________ bare copper conductor could be used as a concrete encased electrode provided it was encased in the minimum amount of concrete required.A) 4 B) 6 C) 8 D) 10

207. If a continuous piece of number 4 bare copper conductor was used instead of a piece of rebar for a concrete encased electrode, the number 4 wire needs to be encased in a minimum of ________ inches of concrete.A) 1/2 B) 1 C) 1 1/2D) 2

208. When referring to a concrete encased electrode, the concrete in which an electrode is encased does not have to be in direct contact with the earth.A) True B) False

209. When using a plate, pipe, or driven rod as an electrode, a supplemental electrode is ________.A) RequiredB) Suggested C) Promoted D) Purchased

210. When using a rod or pipe supplemental electrode, it shall be spaced a minimum of ____ ft. from the first electrode.A) 2 B) 4 C) 5 D) 6

211. The electrodes listed in ___________ can be used as a supplemental electrode.A) 250.52(A)(2) through (A)(8)B) 210.42(A)(2) through (A)(8)C) 250.53(A)(3) though (A)(9)D) None of the above

212. If a single electrode has a resistance of ________ ohms or less, than a supplimental electrode is not required.A) 25 B) 27 C) 30 D) 43

213. Would it be acceptable or a violation to run the grounding electrode conductor for a 400 amp service through metal stud framing members?A) Acceptable B) Violation

214. If a service has multiple disconnecting enclosures, then all the grounding electrode taps need to connect to a common _________.A) Equipment grounding conductor B) Grounded conductor C) Grounding electrode conductor D) Phase conductor

Exam Questions:


ARTICLE 250.92(B) Method of Bonding at the Service. This section now requires bonding jumpers to be used around reducing washers, oversized eccentric and concentric knockouts for conduits that contain service conductors. The code calls this an “impaired connection” and the use of bonding jumpers is required around such connections. Service conductors do not have overcurrent protection ahead of them so it is extremely important to ensure a low impedance path for any fault currents that may occur. This section now clarifies that bonding around reducing washers, oversized eccentric, and concentric knockouts are now required when raceways contain service conductors.

ARTICLE 250.94 Bonding for Other Systems. An intersystem bonding termination point is required to be accessible to bond systems covered in 770 and Chapter 8. This point shall be installed external to enclosures at the service equipment or metering equipment enclosures as well as at the disconnecting means for other buildings and structures. Intersystem Bonding terminations are required to comply with 6 different provisions as listed in 250.94 of this code.

ARTICLE 250.102(C) Size Supply-Side Bonding Jumper. The supply side bonding jumper is installed before the service equipment overcurrent protective device and provides electrical conductivity between the metal parts of the service equipment. The supply side Bonding jumper is required to be sized using table 250.66. If the ungrounded supply conductors are larger than 1100 kcmil copper or 1750 kcmil aluminum, then as required by this code, the supply side bonding jumper shall be no less than 12 ½ percent of the area of the largest ungrounded supply conductor set.

ARTICLE 250.104(C) Structural Steel. Bonding of Piping Systems and Exposed Structural Steel. Interconnected structural steel that is likely to become energized is required by this code to be bonded to the service equipment enclosure, grounding electrode, grounding electrode conductor ( if of sufficient size ),and the

215. When multiple electrode taps connect to a common busbar where the grounding electrode conductor is also connected, the busbar shall be a minimum of __________.A) 1/4 in. x 2 in. B) 1/2 in. x 2 in. C) 1 in. x 3 in. D) 2 in. x 2 in.

216. When connecting grounding electrode taps to a common busbar where the common grounding electrode conductor is also connected, the approved method for attachment to the common busbar is by a _________ connector or exothermic welding.A) Designed B) Listed C) Copper D) CO/AL

217. When using a common busbar for multiple grounding electrode taps connected to a common grounding electrode conductor, the busbar shall be located in an ________ location.A) Open B) GuardedC) Accessible D) Shielded

218. The code allows a buried metal water pipe entering a building within ________ ft. to tie directly to building steel as to provide a path to the grounding electrode.A) 5 B) 6 C) 7 D) 10

219. For a metal water pipe to be considered a grounding electrode, it must be in direct contact with the earth for a minimum of ________ ft.A) 2 B) 5 C) 9 D) 10


grounded conductor at the service. This bonding jumper is required to be sized using table 250.66 and is based on the largest ungrounded branch circuit or feeder. Bonding jumper points of attachment are required to be accessible unless allowed by 250.68(A) Exception No. 2 to be covered by fireproofing material.

ARTICLE 250.120 (C) Equipment Grounding Conductors Smaller than 6 AWG. Equipment grounding conductors are required to be sized using table 250.122. 250.120 (C) requires equipment grounding conductors that are smaller than 6 AWG to be protected from physical damage by an identified raceway, cable armor, or hollow spaces in the framing that is not subject to physical damage.

ARTICLE 250.121 Use of Equipment Grounding Conductors. An Equipment Grounding Conductor shall not be used as a Grounding Electrode Conductor. This new section was added to the 2011 Code to clarify that the Equipment Grounding Conductor and Grounding Electrode Conductors serve 2 different purposes. The grounding electrode conductor is sized using table 250.66 and connects to the grounding electrode. This conductor is often installed in parallel with the grounded conductor (Neutral) and possibly carries current under normal operation. The equipment grounding conductor is sized using table 250.122 and connects to a device or piece of equipment and provides a low impedance path for any fault current back to its source.

220. If installing a conduit that has service conductors inside using reducing washers, the use of a ________ is now required to ensure a low impedance path for any fault currents.A) Lock nutB) Meyer’s hubC) Bonding jumperD) All listed answers

221. Using reducing washers, oversized concentric or eccentric knockouts without any bonding jumpers for conduits that contain service conductors is known as an _______ connection.A) SolidB) ImpairedC) GroundedD) Bonding

222. An intersystem bonding point is required to be _________ to the metering and service equipment.A) InternalB) ExternalC) IntegralD) All of the above

223. This code has ________ different provisions for inter/system bonding.A) 3B) 5C) 6D) 7

224. Table ____ is used to size the supply side bonding jumper.A) 250.66B) 250.122C) 250.104D) 250.121

225. If you are installing 2000 Kcmil aluminum ungrounded supply conductors for a service, the supply side bonding jumper needs to be sized not less than ________% of the largest supply conductor set.A) 10B) 12 ¼C) 12 ½D) 13

226. A set of 1250 kcmil copper ungrounded service entrance conductors in a single raceway would require a ________ copper supply side bonding jumper.A) 4/0B) 3/0C) 1/0D) # 2

Exam Questions:


227. True or False, The points of attachment for bonding jumpers are always required to accessible.A) TrueB) False

228. The steel of a structure that is likely to become energized is required by this code to be ________.A) BondedB) WeldedC) PlatedD) Coated

229. Would it be considered acceptable or a violation of this code to pull a single 10 AWG solid copper EGC conductor through bored holes in wood framing members to a hot water heater? A) AcceptableB) Violation

230. Any equipment grounding conductor sized in table 250.122 is required to be protected from physical damage if it is smaller than ________ AWGA) 6B) 8C) 10D) All listed answers

231. A grounding electrode conductor and an equipment grounding conductor are _______ the same conductor.A) EssentiallyB) NotC) TraditionallyD) Always

232. The grounding electrode conductor is sized using table ________.A) 250.122B) 110.14C) 250.66D) 250.104

233. An equipment grounding conductor is usually installed with ________.A) FeedersB) Branch circuitsC) Motor feeders D) All listed answers

234. What is the minimum size copper equipment grounding conductor required for a 400 amp subpanel in a cheese processing facility?A) # 1B) # 2 C) # 3D) # 6

ARTICLE 250.122(F) Size of Equipment Grounding Conductors. The 2011 Code has clarified this section to indicate that one equipment grounding conductor is all that is required for each parallel set of ungrounded conductors in a cable tray system. Equipment grounding conductors that are installed in cable trays are required to meet the standards as listed in 392.10(B)(1)(c). Despite this revision, equipment grounding conductors are still required to be sized using table 250.122.

ARTICLE 300.4(E) Cables, Raceways, or Boxes Installed in or under Roof Decking. The 2011 Code requires boxes installed under metal corrugated roof decking systems at its lowest point to be a minimum of 1 1/2 inches to the top of any box. The 2008 code addressed just cables and raceways realizing that roof decking screws are typically 1 ¼ inches long and could damage these systems. This revision makes it clear that boxes are now also included in this 1 ½ rule.

ARTICLE 300.4 (H) Structural Joints. If raceways cross a structural joint intended to expand or contract due to physical conditions, listed expansion joints are required to be used for raceways crossing these sections. An expansion joint allows raceways to expand and contract with any movement without damaging the conductors inside. It is critical for conduits to be able to expand and contract with any structural movement as a raceway system could pull apart and expose the conductors inside to physical damage.


235. A parallel set of ungrounded conductors that is pulled in a cable tray system require _______ equipment grounding conductor(s).A) MultipleB) OneC) TwoD) None of the above

236. Equipment grounding conductors that are installed in cable trays are required to meet the provisions of ________.A) 392.10(B)(1)(c) B) 391.20(B)(1)(c) C) 392.10(D)(1)(c) D) 391.10(D)(1)(c)

237. If installing a 12 x 12 pull box for three 1 ¼ EMT conduits under a metal corrugated roof, the box is required to be installed at least ________ from the lowest point of the corrugation.A) 1 ¼ inchesB) 1 3/8 inchesC) 1 ½ inchesD) All of the above

238. Any area identified by architectural plans to contain a structural expansion zone that has raceways crossing this point is required to have ________ installed in such raceways as required by this code.A) Seal tightB) FlexC) Car flexD) Expansion joints

239. Would it be considered acceptable or a violation of this code to install FMC in an expansion zone instead of a listed expansion fitting if approved by the AHJ.A) AcceptableB) Violation

240. True or False, Cables and boxes are permitted to be installed closer than 1 ½ inches to corrugated roof decking so long as the roofing contractor agrees to use smaller screws.A) FalseB) True

Exam Questions:

ARTICLE 300.5 (C) Underground Cables under Buildings. The 2011 Code has added two new exceptions that allow type MI and MC Cable to be installed under a building without being installed in a raceway as long as the cables are listed to be installed for direct earth burial. Table 300.5 has added type MI and MC Cable for direct burial, however, there is no minimum burial depth listed. The 2011 code has recognized reasonably that type MI and MC cable installed under a building are protected from physical damage.

ARTICLE 300.5 (I) Ex. No. 1 Underground Installations. All conductors of the same circuit are required by this code to be installed in the same cable, raceway, or if installed in a trench, they are to be installed in close proximity with each other. This rule also addresses single direct buried conductors used for parallel feeders or other similar conductor configurations. This requirement is to prevent inductive heating and circuit impedance because magnetic fields cancel each other out when conductors of the same circuit are installed close together.

ARTICLE 300.11 (A)(2) Securing and Supporting. Non Fire Rated Assemblies. Non fire rated assemblies are now required to have independent support ceiling wires installed to support boxes, luminares, and other electrical equipment. These ceiling wires are required to be identified differently


241. What is the minimum depth required by this code for MI cable to be run under a building.A) 6 inchesB) 8 inchesC) 12 inchesD) None of the above

242. Type MC Cable that is listed for direct burial ________ be installed under a building.A) Can notB) CanC) Shall notD) Must

243. Parallel single conductors installed in a trench used to feed a 3 phase 480 volt 400 amp sub panel are required to be installed so the conductors are _______ each other.A) Close toB) Separated fromC) Far fromD) No listed answer

244. The requirement of 300.5 (I) Ex. No. 1 is to prevent _____.A) HysteresisB) Inductive heatingC) Eddy currentsD) Copper loss

245. Ceiling support wires used to support a 4 11/16 box are required to be identified ________ than the ceiling support wires.A) The sameB) DifferentC) SimilarlyD) All listed answers

246. An acceptable method for identifying ceiling support wires used to support electrical equipment and material is___________.A) TaggingB) Tape C) PaintD) All listed answers

247. EMT that penetrates a fire rated concrete ceiling assembly must use a fire stopping method that has a _________ number and is specific for that type of installation.A) BRB) PhoneC) CodeD) UL

248. True or False, Penetrating 2 layers of sheet rock from one dorm room to another does not require any fire stopping around the penetration if using RMC.A) TrueB) False

from the ceiling support wires and are allowed to be attached to the ceiling grid system. Ceiling support wires can be identified by paint, tagging, or other distinguishable means.

ARTICLE 300.21 Spread of Fire or Products of Combustion. This section requires any opening into fire rated walls, partitions, ceilings and floors to be fire stopped. This revision is important to maintain the fire rating of a structure due to the installation of electrical material. All penetrations that require fire stopping must use an approved UL listed assembly for the material being penetrated as well as the electrical system that is penetrating.

ARTICLE 300.22 Wiring in Ducts not used for Air Handling. This section now allows metal cable trays to be used in plenums or other areas primarily used for air flow. The cable tray system can also support other metal raceways such as RMC, IMC, EMT, and MC Cable with a metallic covering. Solid bottom, wall, and lid cable trays can house nonmetallic wiring systems in plenums if allowed by this code for use in such areas.

Exam Questions:


249. Section 300.22 allows cable trays to be installed in areas primarily used for ________.A) HeatB) Air flowC) VentingD) Moisture

250. Would it be considered acceptable or a violation of this code to run ENT inside a cable tray system that had solid sides, bottom, and a metal cover that runs through a plenum.A) AcceptableB) Violation

ARTICLE 300.50(B) Requirements for Over 600 volts. Underground installations. Wet Locations. The interiors of raceways and enclosures installed underground are considered wet locations. The 2008 Code stated that this was true for conductors 600 volts or less. The 2011 Code has now recognized this is also true for conductors operating at 600 volts or greater. Any conductor installed in an underground raceway system must have its insulation rated for use in a wet location.

ARTICLE 310 Conductors for General Wiring. The 2011 Code has completely changed and re-organized this article into three (3) parts. Part I covers general requirements, Part II covers conductor installation, Part III covers construction specifications. As part of this re-organization, the tables have all been relabeled from the traditional numbering system that we have grown accustom to. Table 310.16 is now numbered 310.15(B)(16) and the other familiar tables follow the same numbering. The numbering of the tables start with 310.15(B)(?) and the last number coincides with the old table designator.

ARTICLE 310.10(E) Uses Permitted. Shielding. Section 310.6 has been re-numbered for the 2011 code to 310.10(E). This section has also been revised to allow non-shielded ozone resistant cable with a maximum of 5000 volts phase to phase to be used in industrial establishments under controlled conditions using qualified persons supervising the installation. A new exception No. 2 now permits non-shielded cable up to 5000 volts to be used as a replacement for existing equipment in industrial establishments only.

ARTICLE 310(H)(1) Conductors in Parallel. Section 310.4(A) has been re-numbered for the 2011 code to 310.10(H)(1). This section has been revised to more clearly state that “only in sizes 1/0 and larger” conductors are allowed to be run in parallel. The 2008 code stated “1/0 and larger shall be permitted” to be run in parallel which left some confusion as to whether smaller sizes could also be run in parallel. This revision makes it crystal clear that the smallest size conductors that can be run in parallel are 1/0. Exception No. 2 allows grounded neutral conductors sized 2 AWG and 1 AWG to be run in parallel under engineering supervision for existing installations.

ARTICLE 310.10(H)(6) Uses Permitted. Conductors in Parallel. Equipment Bonding Jumpers. New item (6) of 310.10(H) covers the sizing requirements for bonding jumpers installed with conductors in parallel. This new section references us to use 250.102 for sizing the supply side equipment bonding jumper. This section makes it clear that the supply side bonding jumper needs to be installed with each parallel conductor set and sized using table 250.66 based on the size of the ungrounded supply conductors in the conduit. Additionally, sizing the load side bonding jumper is done using table 250.122 based on the over current protective devise of the parallel conductors.


TABLES 310.15(B)(2)(a) and 310.15(B)(2)(b). The 2011 Code has taken the ambient temperature correction factors that were at the bottom of tables 310.16 and 310.18 and created two new tables that just have ambient temperature correction information listed only. The new table 310.15(B)(2)(a) has the correction factors for 30*C ( 86 F) and table 310.15(B)(2)(b) has 40*C ( 104

251. Which statement is true about raceways installed underground? A) A 2” RMC installed underground is considered to

have its interior to be dry and free of moisture.B) A 150KVA line installed in 4” Schedule 80 PVC

conduit underground is considered a dry location.C) All raceways installed underground and encased

in concrete are considered a dry location.D) The internal area of a raceway installed

underground is considered a wet location.

252. Conductors installed in an underground raceway duct bank system that feed a twenty story office building are required to have their insulation suitable for ________ locations.A) WetB) CorrosiveC) DryD) Damp

253. Chapter 310 has been re-organized into ________ parts.A) 2B) 3C) 4D) 5

254. The wire tables in chapter 310 have been re-numbered and now begin with ________ number designator.A) 310.15(B)B) 300.15(B)C) 315.10(B)D) 310.16

255. A 2000 HP Medium Voltage motors conductors need to be replaced. The 2011 code allows the use of non-shielded cable so long as the voltage does not exceed ________ volts phase to phase.A) 5000B) 5250 C) 6000D) 7000

256. The 2011 code allows feeders that supply MV equipment operating in _________ facilities to be replaced with non-shielded cable as long as the installation is supervised by a qualified person.A) Petro chemicalB) Paper and pulpC) ChemicalD) All listed answer

257. The article and section in the 2011 code that describe the smallest size conductors that can be run in parallel is _______.A) 310.4(A)B) 310.10(A)(1)C) 310.10(H)(4)D) 310.10(H)(1)

258. Without the use of any exceptions with regards to conductors run in parallel, the smallest size conductor allowed to be run in parallel is ________.A) 1 AWGB) 2 AWGC) 1/0D) All listed answers

259. The 2011 code tells us to use the requirements of section ________ for sizing the supply side equipment bonding jumper.A) 250.102B) 250.122C) 250.66D) None of the above

260. The load side of an over current protective device needs the bonding jumper of the parallel conductors sized using table ________.A) 250.102B) 250.122C) 250.66D) 250/102(C)

Exam Questions:


F) ambient temperature correction factors listed . Ambient temperature is the temperature of an area where an electrical installation is installed. This information is vital to install the correct conductors based on current demands. The hotter an area is, the lower the current. The colder an area is, the higher the current.

ARTICLE 310.15(B)(3)(a) Adjustment Factors for more than Three Current Carrying Conductors in a Raceway or Cable. The 2011 Code has changed the first column heading to “Number of Conductors” from the previous 2008 version that stated “Number of Current carrying Conductors”. This change accounts for spare conductors that may be pulled into a raceway and may not yet be energized. When extra conductors are installed in a raceway, the conductors that do carry current have a harder time cooling down thus reducing their current carrying capacity. 312.8 Switch and Overcurrent Device Enclosures with Splices, Taps, and Feed through Conductors. This section has been revised and clarifies language with regards to conductors that feed through, tap, and splice in a cabinet. Conductors can feed through a cabinet or enclosure so long as the total of the conductors does not exceed 40 percent of the cross sectional area of that space. Splices and taps are also allowed in cabinets and enclosures as long as the splices and taps do not exceed 75 percent of the cross sectional area of the space. Additionally, conductors that feed through an enclosure are required to be identified with a warning label on the enclosure in which they pass that indicates there are feed through conductors present, the conductors are located in this particular panel, and what panel the conductors are fed from. The result of this revision is to warn the qualified individual of the presence of energized conductors in the enclosure.

261. The current of a conductor in an area where the ambient temperature was 100*F would be ________ than the current of a conductor where the ambient temperature was 140*F.A) LowerB) HigherC) The sameD) No listed answer

262. The new table 310.15(B)(2)(a) has the correction factors for ________*C ( ________ F)A) 20, 84B) 30, 86C) 40, 104D) 32, 98.6

263. The 2011 Code has added ________ new tables that are dedicated for ambient temperature correction factors.A) 1B) 2C) 3D) 5

264. Spare conductors that share a raceway with current carrying conductors can inhibit the current carrying conductors from dissipating ________.A) MoistureB) HeatC) PowerD) Voltage

265. Would it be considered acceptable or a violation of this code to not count spare conductors that share the same raceway with energized conductors for deration purposes.A) AcceptableB) Violation

266. A set of conductors that pass through a 100 amp disconnect are allowed by this code as long as they do not exceed ________ of the cross sectional area of the enclosure in which they pass through.A) 40%B) 45%C) 50%D) 75%

Exam Questions:


ARTICLE 314.16(C)(3) Short Radius Conduit Bodies.This revision is a relocation rather than a change. This move was to better group all related info concerning installation requirements of Short Radius Conduit Bodies with its associated outlet, device, pull or junction boxes and conduit bodies. This was accomplished by moving article 314.5 to Part II (Installation) Article 314.16(C)(3). This also does a better job of accomplishing the code book’s outline format. In the process Article 314.5 was eliminated and all of its requirements were moved to its new location. No technical changes were made. This section describes short radius conduit bodies and capped elbows not to have the ability for splices or taps when conductors 6 AWG and smaller are installed.

ARTICLE 314.21 Repairing Noncombustible Surfaces.This revision came about to better line up the requirements of 312.4 with 314.21. This change makes it clear that not only must drywall or plaster board be repaired to within 1/8 in of any flush mounted box, but that all Noncombustible Surfaces must also be repaired, so that no gap larger than 1/8 in is present.

ARTICLE 314.27(C) Boxes at Ceiling-Suspended (Paddle) Fan Outlets.This revision came about because it is not uncommon for builders to include an extra conductor for future use as a switched fan conductor. The code now makes it clear that if this extra separately switched conductor is provided, to a ceiling outlet box, then the outlet box must be listed for supporting a ceiling paddle fan.

ARTICLE 314.28(E) Power Distribution Blocks.While it has always been legal to have power distribution blocks in metal wireways per Art 376, this addition (part “E” of 314.28) makes it possible to also use distribution blocks in larger junction boxes (larger than 100 in.3). keep in mind this addition still includes the same restrictions included in Art 376. There is however one additional Item in Art 314.28(E), item “5” which makes it clear that conductors passing through must not cover/obstruct the distribution block terminals, when compared to Art 376.

267. The 2011 Code allows enclosures to house splices and taps if the splices and taps do not occupy more than ________ of the cross section area of the enclosure where the splices and taps are made.A) 75%B) 77%C) 80%D) 85%

268. If conductors from a panel labeled C1 pass through a different panel labeled C2, panel C2 is required to have a ________ posted on its cover that indicates this is happening.A) DiagramB) MapC) Warning labelD) All listed answers

269. What best describes the information required on an enclosure label that has conductors from a different source passing through it?A) Conductors from a different source are located hereB) Where the conductors are fed fromC) There are feed through conductors D) All listed answers


270. True or False, Capped elbows are the only condulet allowed to splice conductors as long as the conductors are 12 AWG and smaller.A) TrueB) False

271. Short radius conduit bodies containing conductor’s ________ , shall not contain any splices, taps or devices.A) 6 AWG and largerB) 4 AWG and smallerC) Smaller than 2 AWGD) 6 AWG or smaller

272. Any junction box, in a CMU wall, shall not have a gap around its edge larger than ________. A) 1/16 inB) 1/8 inC) 1/4 inD) 3/16 in

273. You have provided a 14/3 NMB to a ceiling box. The red conductor is a spare for future use. The ceiling outlet box must be________.A) A 4/0 deep box.B) Acceptable to the AHJ.C) Listed as a fan box. D) Listed as a heavy-duty ceiling box.

274. When sizing a junction box to be used with a power distribution block, there are two size considerations. One is to the junction box needs to be larger than 100 in.3. The second is…?A) The width of the box must be 6 times the largest

raceway entering the box.B) The box must not be smaller than installation

instructions of the power block.C) The height of the box must be 8 times the largest

raceway.D) The depth of the box must be at least 50% of the

width of the box.

275. One of the requirements for the installation of type MV cable is ?A) The installer must be a certified electrian.B) Must be tested by a third party.C) Must be installed, terminated and tested by a

qualified person.D) Must be installed and tested by a qualified electrian.

276. IEEE ________ gives the best recommended practices for splicing, terminating and installing type MV cable.A) 576B) 567C) 400D) 536

ARTICLE 328.14 Installation (of Medium Voltage Cable, type MV).Most electrian/installers know how to install general use conductors, raceways, and cables using best practices. However most electrians don’t realize that MV type cable has its own set of installation requirements, and manufacturer’s recommendations. It was with this in mind that 328.14 has been added. This new article adds “shall” to the requirement of installation by “qualified persons”, which is an unusual requirement for the installation of any wiring type. The definition for “qualified person” should be looked up in Art 100 to have a better understanding of this requirement. An “informational note” has also been added listing IEEE 576, which gives the best recommended practices for splicing, terminating and installing type MV cable in the commercial, industrial world.

Exam Questions:

ARTICLE 338.10(B)(4) SE Cable-Installation Methods for Branch Circuits and Feeders.At first glance this seems like no change at all until one notices that Art 334.80 is excluded from SE cable requirements. This change allows SE Cable to be used at its rated at 75o C rather than to be limited to the 60o C rating of NM as before. However there was also a provision added for cables installed in thermal insulated areas. In these areas the maximum conductor temperature rating will be 60o C, but as before any corrections or adjustments are from the maximum temperature rating, with the final ampacity rating not to exceed 60o C column.


277. You have a #8/3 wg type USE cable with THWN-2 conductors. What is the maximum size OCPD that can be used?A) 55 ampsB) 65ampsC) 40 ampsD) 50 amps

278. You have installed a 14 in. piece of EMT between two panels, how many supports are needed for the raceway?A) One within 6 in. of each end.B) None, it’s within 18 in. and is a nipple.C) One in the middle of the raceway.D) Any of the above.

279. All raceways are required to be supported within ________ of a box.A) 3 ftB) 4 ftC) 2 ftD) 18 inches

280. You have installed an FS box and 3 feet of ¾ in. LFMC for flexibility, to a motor. What else must you do to have a legal installation?A) Nothing else is needed.B) Add a support within 12 in of both the motor and

the FS box.C) Add a support within 12 in of the FS box only.D) None of the above.

ARTICLE 342, 344, 352, 355, 358, .30(C)In the 2008 NEC we were given permission for not supporting conduits or raceways 18 in. or less where concentric knock-outs were not used, “Article 3XX.30(C)”. The .30(C) article has been removed and replaced with .30(A) in the 2011 NEC and now states that in general all raceways shall be securely fastened within 3 ft. of boxes, cabinets, or other fittings. We now see that the exception has been removed and all raceways will be supported.

ARTICLE 348.30(A) & 350.30(A)These two articles concern Flexible Metal Conduit and Liquidtight Flexible Metal Conduit. The general rule for support is that flex will be supported within 12ins of a junction box, conduit body or conduit termination, and then supported every 4 ½ feet after that. There is however an exception for flexibility after installation(motors, transformers, ect). Exception #2 in the 2008 NEC sounded like it was saying that no support was needed as long as the flex was less than the lengths listed in the exception. It sounds like you could have 4 feet of 1 ½ flex unsupported if this was for flexibility needs. The 2011 NEC has tried to clear up the intent of the exception which is that lengths of unsupported raceways talked about are measured after the last support that you have in place. As was always intended you must support your raceway 12 in after your box or condulet and then the 4 feet of unsupported flex starts.

ARTICLE 348.60 & 350.60This is an addition to the article to clarify what most electrians were already doing. In the 2008 NEC we see that an equipment ground was required when the flex was used for flexibility after the installation. This addition clarifies the need for an equipment ground being needed when the flex is used not only for flexibility, but also when flex is used to mitigate vibration, such as motors or transformers. We now have two conditions for an equipment ground needing to be added, flexibility as well as vibration such as motors and transformers.

Exam Questions:


ARTICLE 392.18(H)Much of article 319 has been rearranged to better align with the rest of the codebook concerning its outline format. This part of the article 392 is however an addition, due to safety concerns. Article 392.18(H) is under installation of cable tray and more specifically cable tray carrying conductors rated over 600 volts. We now have a requirement for marking/labeling of the cable tray as to the hazard of this higher voltage. You must now place a permanent and legible label stating “DANGER-HIGH VOLTAGE-KEEP AWAY”. This label must be placed in a visible spot on the cable tray and spaced not more than 10 feet apart.

ARTICLE 404.2(C)Over the years we have seen an increase in the use of electronic lighting control devices. Due to the fact that these devices need a steady standby current to operate their electronic sensors and maintain their electronic brains even when the lights are off, these devices requires a grounded conductor. Until now that has been accomplished through the use of the ground wire. However if you start adding up all of the added and required lighting control devices now needed you can see that a fairly large current flow can be applied to the ground circuit causing an unsafe condition for people as well as many noise problems for other devices on the same ground. To help eliminate this problem the 2011 code states that all switches controlling lighting loads now need a grounded conductor (neutral) in the switch box. There are two exceptions to needing a neutral at the box. (1) If conduit with room for adding additional wires is used. (2) If using romex and there is access to the stud cavity from above or below on the same floor or the wall is open on one side.

ARTICLE 404.9(B)In general the code states that you must ground the metal yoke of a switch in one of two ways. You must use either the metal screws of the switch yoke to connect to a metal junction box or mud ring directly, or in the case of a plastic nail box you must connect the metal switch yoke with a grounding pigtail. However with the advent of new plastic switch assemblies that include screw less trim plates the code has created two new exceptions. Exception #1: If you are replacing a switch in an existing non-grounded system, and you use a non-metalic switch plate with plastic screws, or you use a GFI protected circuit, you don’t need a ground. Exception #2: If you use one of the new plastic switch systems(Plastic yoke, switch housing, switch plate) that only allow their proprietary switch plates and don’t allow for the attachment of metal switch plates you don’t need to ground the switch. Keep in mind that Exception #2 doesn’t mean you don’t need an available ground system, just that you don’t need to ground the switch.

ARTICLE 406.4(D)(4)The NEC introduced us to AFCI circuit protection in many areas of the home to prevent electrical fires. Up to this point the requirements have been for new construction, however the code committee has wisely agreed, that it is our older homes that are of a greater concern. As such the code has taken a proactive stance and now requires AFCI protection, for replacement of outlets, anywhere that AFCI protection is normally required according to the code, for branch circuits. This article does not mean you need to replace all of your existing outlets, only that if an outlet is replaced it must be brought up to the new code requirements. To accomplish this goal the code allows three methods, #1) You can replace the outlet with an AFCI type receptacle. #2) You can replace the receptacle with a standard receptacle that is protected by an upstream AFCI receptacle. Or #3) You can replace the receptacle with a standard receptacle of a circuit protected by an AFCI breaker.


281. You are installing open bottom cable tray containing 5KV feeder cables, 20 feet in the air of a factory. You need to order labels for the cable tray and install them. What should the labels say and how often are they needed?

A) “WARNING 5000 VOLTS”, every 20 feet.B) “DANGER KEEP AWAY”, every 10 feet.C) Don’t need warning labels its over 8 feet above

the floor and in an Industrial setting.D) “DANGER-HIGH VOLTAGE-KEEP AWAY”, every 10 feet.

282. You are installing a dead-end three way switch in a house. The installation is in a finished basement, on an exterior wall, with sheetrock ceilings. How many wires minimum will you need in the switch box, not counting ground wires.A) Two wiresB) Four wiresC) Three wiresD) Five wires

283. You are installing switches and their plates but you don’t want to have to ground the switch. Which system is acceptable to the NEC for not grounding of the switch?

A) Plastic box, standard switch, grounded romex, plastic switch cover, plastic screws.

B) Metal junction box, plastic yoke switch, stainless steel switch plate, plastic screws.

C) Metal junction box, plastic switch, plastic yoke, snap-on proprietary plastic switch plate.

D) None of the above.

284. Which of the following methods for replacing a grounded receptacle, for example in the living room an existing home, is acceptable?

A) Replace the receptacle with a like and kind receptacle.

B) Replace the receptacle with a GFCI receptacle.C) Replace the receptacle with an AFCI receptacle.D) Doesn’t matter what type of receptacle you use.

285. If you need to replace a grounded type receptacle in a bedroom of your residence, you must replace it with a ___________________ type receptacle.A) Equivalent groundedB) 15 amp, 125 volt rated, standardC) Tamper-resistantD) GFCI

Exam Questions:

ARTICLE 406.4(D)(5)&(6)Here we have one of the few times the code requires you to update equipment to the most current code requirements, when the equipment is being replaced. These additions to the code are part of a new list concerning receptacle replacements. Part (D)(5) states that when receptacle are replaced in areas that the code now requires to be tamper-resistant, the new replacement receptacle must be of the tamper-resistant type. Part (D)(6) similarly states that when receptacle are replaced in areas that the code now requires to be weather-resistant, the new replacement receptacle must be of the weather-resistant type.


ARTICLE 406.12 (Exc.)In article 406.12 we are told that the general rule for all non-locking, 125 volt, 15-20 amp receptacles are to be tamper-resistant. However the 2011 NEC has added four exceptions to relax this requirement for tamper-resistant receptacles. All of these exceptions are for areas that are not seen as high probability areas for children to come in contact with receptacles. Exc. #1: Receptacles out of reach of children by being more than 5 ½ ft. above finished floor. Exc. #2: Receptacles that are part of a factory light fixture or appliance. These are typically located higher up above little ones reach. Exc. #3: This one is for dedicated outlets, like the fridge or an appliance bar area. And #4: For original non-grounded receptacles in use or being replaced.

ARTICLE 406.14In the 2008 NEC the need to protect young children from shocks or burns was accomplished with the addition of tamper-resistant outlets in the home, for all 15 and 20 receptacles. The 2011 addition of the code now recognizes that in today’s world our children spend much of their time at a daycare (Child care facility). The 2011 NEC has added the tamper- resistant requirement to daycare 15 and 20 amp receptacles, to address this concern. Also to prevent any confusion as to what a daycare (Child care facility) is the NEC has added a new definition for “Child care facility”, 406.2.

ARTICLE 408.3(F)Due to safety concerns the NEC has been adding or changing the way we label Panelboards and Switchboards with warnings or information. One of these changes is with the Identification of Switchboards and Panelboards as to voltages and their configurations. The 2011 NEC has changed the title of 408.3(F) to “Identification” and included under that heading the 2008 NEC requirement for “High-leg Identification” 408.3(F)(1). The 2011 NEC has also added under Identification, part 408.3(F)(2) “Ungrounded Systems” and their new Identification requirements, “Caution: Ungrounded System Operating at 480 Volts Between Conductors”. Both of these requirements should help to better inform Electrians of what to expect before opening a panel or switchboard.

Article 408.4(B) Field Identification; of Panelboards and Switchboards. The NEC has renamed section 404.4 so that they could combine the Labeling of Individual Breakers (404.4(A)) with this new subsection 404.4(B). Many engineers and spec-books for projects have required panelboards and switchboards to be labeled as to where the panelboards feed originates from. Now the NEC spells out this required labeling for all Panelboards and Switchboards, other than residential. This has been a safety problem as well as a maintenance issue. Now rather than the electrian becoming frustrated with finding a way to de-energize the panel and therefore working on the panel hot, we now have an easy way to locate the panelboard and de-energize it before working on it.

Article 409.110(3) Marking/Labeling.In order to properly install and maintain equipment we as electricians need to have a lot of pertinent information. One of the things we need to know in order to safely work on Industrial Control Panels is if a panel has more than one source of power. It is required by many safety standards that all power supplies are turned off. Here the NEC has tried to make that easier for the service electrian by requiring this addition to the list if information that already exists for Industrial Control Panels. You now must include in the labeling, previously required, a warning that there is more than one power supply to the equipment.


ARTICLE 410.64: Luminaires used as a Raceway.The 2008 NEC was a little confusing as to whether you could use end to end fixtures for a raceway. To clear this up and to better put 410.64 into a correct outline format the 2011 NEC has combined 410.64 and 64 into one article. The 2011 NEC now has 410.64 subsections (A)(B)(C) which allows three conditions for fixtures to be used as a raceway. Hopefully this will clarify when and how we can use fixtures as raceways.

ARTICLE 410.130(G): Discharge Lighting Disconnecting Means.he 2008 NEC made it clear that all Fluorescent lighting fixtures, needed a disconnecting means for their ballasts, with new installations. However here is another instance of the NEC requiring an existing circuit/equipment to be brought up to new code standards. The update in this case is that when an existing ballast is changed it must have a disconnecting means added, as if it was a new luminaire installation. There are however some limitations, such as this applies to indoor use only, and other than dwellings use. Also as in other instances the updating of the circuit only takes place upon replacement of the ballast. Also notice all Exceptions all still in place for this article.

ARTICLE 424.44(G): GFCI Protection.In the past the requirements for GFI protection of Heating cables was reserved for cables imbedded in bathrooms and hydromassage areas only. This requirement is do, of course, to these areas be wet much of the time and therefore able to conduct electricity very easily. The code making committee agrees that the Kitchen Area is also very susceptible to water and liquids which conduct electric and shocks making it a shock hazard. The 2011 code book now includes kitchens along with bathrooms and hydromassage, concrete poured floors with heat tape requiring GFCI protection.

286. Which one of the following residential receptacles are not required to be tamper-resistant per the NEC?A) The unfinished basement receptacle.B) The overhead garage door receptacle.C) The bathroom GFI receptacle.D) The hallway receptacle.

287. When am I allowed to use standard (non-tamper-resistant) receptacles in a daycare facility?A) If my receptacles are GFI protected.B) If my receptacles are in the hallway.C) If there is to be a supervisory person present with

the children all the time.D) None of the above

288. You have installed an ungrounded 3phase 480volt Panelboard and now you are ordering a phenolic Plate for it. The Labeling should read?A) Danger High Voltage B) Warning: Ungrounded 480 volt PanelC) Caution: Ungrounded System Operating at 480

Volts Between ConductorsD) You only need the panel number. Ex. Panel “A”

289. What type of Field Labeling is required for a new panel that is installed in a factory?A) You only need to Identify the name of the panel,

example: Emergency Panel.B) You only need to create a panel schedule of the

individual breakers for the inside door of the Panel. C) You need to Identify where the panel is fed from and

create a panel schedule for the individual breakers.D) You are not required to label/Identify the panel

or switchboard unless the engineer requires it.

290. Which of the following is not one of the required Informational Markings?A) Manufacturer’s name and trademark.B) Date of Manufacture of the equipment.C) Panel is supplied by more than one power source.D) Electrical wiring diagram.

Exam Questions:


291. You have a row of end to end connected fluorescent strip lights. The fixtures are listed for use as a raceway but are not listed for through-wiring. You are running a circuit through the fixtures to feed a sign outlet on the end of the fixture run. This circuit is _______.A) AcceptableB) Not Acceptable

292. You are retro fitting two by four fluorescent t-bar fixtures in a clothing store. What does the NEC require you to add to bring the fixture up to current NEC standards?A) New T5 tomb stone socketsB) New wire connectorsC) Replacing the Ballast is all that’s neededD) Add a disconnect for the ballast

293. Which room with concrete imbedded heat tape does not need GFCI protection?A) BathroomB) BedroomC) Hydro massage areaD) Kitchen

294. You need to know the ampacity to be used for sizing the branch circuit to a “VAM”. You are to use _____________ for the ampacity rating of the (VAM).A) The Full Load Ampacity Tables from art 430.250B) The Name plate FLA rating on the “VAM”C) The Locked rotor current rating as if it is a Torque

motorD) None of the above

Exam Questions:

ARTICLE 430.6(D): Valve Actuator Motor Assembles.Article 430.6 of the NEC gives us all of the rules for sizing conductors and equipment. In the past many have considered the “VAM” to be a torque motor which is an incorrect assumption. This new subsection makes it clear as to how you are to size the branch circuit conductors, the OCPD’s and the actuator assembles for the “VAM’s”. This subsection makes it clear that the amperage to be used for this sizing is the name plate value on the Valve Actuator Assemble.

ARTICLE 450.14 Disconnecting Means (Transformer).This is a new safety driven article that was added to the 2011 NEC. In the 2008 NEC Art 240.21(B)(3) “Taps supplying a Transformer”, a disconnect was not required for each tapped transformer, so long as the other requirements of the article were met. This can be a source of unsafe maintenance, do to not being able to isolate individual transformers from the feeder as a whole. By adding a disconnect, as is required in the 2011 NEC for each transformer, you create a safer maintenance environment by being able to isolate individual transformers. This new requirement can be accomplished with either a disconnect in sight of the transformer or a Lockable disconnect if not insight of the transformer. If the disconnect is not in sight of the transformer then you are required to label the transformer as to the local of the disconnect.

ARTICLE 514.11(A) Circuit Disconnect (Motor Fuel Dispensing Station).In the 2008 NEC it seems as if the only circuits that need to be disconnected are the power circuits. The 2011 NEC has cleared up exactly what types of circuits are to be disconnected. “All power, communications, data, and video circuits” that pertain to the fuel dispensing station. Also note that as always all conductors are to be broken, simultaneously with approved (factory tie bars only) and readily accessible devices, from their respective sources. This addition is due to the addition of so many electronic devices now being used to control and monitor the newer dispensing systems.


297. What is the maximum footage allowed for unlisted outside communications cable that enter a building and terminate in a listed communications box?A) 50B) 55C) 60D) 75

298. Would it be considered acceptable or a violation of this code to attach network-powered broadband cable to the same messenger wire that support phase conductors.A) AcceptableB) Violation

299. Network-powered broadband cable is required by this code to be installed ________ any power cables.A) AboveB) DirectlyC) BelowD) All Listed answers

ARTICLE 800.48 Unlisted Cables Entering Buildings. Outside unlisted plant communications cables are allowed to be installed in building spaces other than risers, and other spaces used for environmental air, as long as the length of the cable inside the building, and measured from its point of entrance does not exceed 50 feet and the cable enters the building from the outside and is terminated in a listed enclosure or, primary protector.

ARTICLE 830.44 Overhead Aerial Cables. If network-powered broadband communications cables are to be run in parallel with power conductors, and are supported by the same pole, they are required to meet the following provisions: The Broadband Cable is required to be installed below any power conductors, the broadband cable cannot attach to the cross arm that is supporting the power conductors, separation shall be maintained as described in 225.14(D), and the broadband cables are required to be kept away from all power, Class 1, and fire alarm conductors as to avoid any contact.

ARTICLE 830 Network-Powered Boradband Communications Systems. Informational Note: The term Grounding conductor has been changed for this code cycle as pertaining to article 830 to Bonding Jumper, or Equipment Grounding Conductor (EGC) to clarify its function and application.

ARTICLE 820 Community Antenna Television and Radio Distribution Systems. Informational Note: The term Grounding conductor has been changed for this code cycle as pertaining to article 820 to Bonding Jumper, or Equipment Grounding Conductor (EGC) to clarify its function and application.

ARTICLE 820.154 Application of Listed CATV. Table 820.154(b) lists the permitted and non-permitted use of listed coaxial cables. The permitted applications for coaxial cable are subject to the installation requirements of 820.113.

Exam Questions:

InformationalNotes

InformationalNotes

295. A disconnect for a transformer supply must be ______________.A) Within sight of the transformer.B) If not within sight of the transformer then it must

be lockable.C) Transformer must be labeled with the disconnect

location if not within sight of.D) All of the aboveE) None of the above

296. You are installing a new gas dispensing island at a grocery store. Which systems need safety disconnects at their source?A) Only non-power limited circuits.B) All circuits accept the intercom wiring.C) All circuits leading to, including data, intercom,

power, video.D) None of the above.


300. Network-powered broadband cable installed below a set of phase conductors that supply a 240 volt light are required to be ________ away from the phase conductors.A) 22 inchesB) 20 inchesC) 18 inchesD) 24 inches

301. Article 830 has changed the term ________ to specify its function.A) BondB) Bonding JumperC) ElectrodeD) Grounding Conductor

302. Broadband cables are required to be kept away from all ________ conductors.A) Class 1B) PowerC) Fire AlarmD) All of the above

303. The language changing bonding jumper and equipment grounding conductor from grounding conductor is discussed in the first informational note of article ________.A) 800B) 820C) 840D) 790

304. To determine if a listed coaxial cable can be installed in a non-concealed space, table ________ must be used.A) 820.154(a)B) 800.5C) 770.34(b)D) No listed answer

305. If you were to install a listed coaxial cable in a fabricated duct for environmental air, section ________ shall be used.A) 820.115B) 820.154(a)C) 820.56D) 820.113

ARTICLE 820.110 Raceways for Coaxial Cables (A)(1)(2). Coaxial cables are permitted to be run in any raceway system as described in 820.110 (A)(1) or (A)(2). Coaxial cable is permitted in any raceway listed in Chapter 3 of this code, (Chapter 3 contains information with regards to raceway system installations). The raceway systems listed in Chapter 3 that contains coaxial cable must be installed as per the requirements of Chapter 3 and the individual raceway system. Coaxial cable is allowed to be run in a plenum communications raceway, a listed general purpose communications raceway, and a listed riser communication raceway. The raceway fill requirements of Chapter 3 and 9 do not apply to coaxial cable.

Part IV Grounding Methods: 820.100 Exception. This now allows the shield of a coaxial cable to ground directly to an equipment grounding conductor of a grounded receptacle provided a dedicated grounding conductor is installed and connected to a listed device. A plug and Cord installation is not allowed to make this connection. The coaxial cable needs to be isolated from any existing cables and their raceways to allow the use of this exception.

ARTICLE 810 Radio and Television Equipment. Informational Note: The term Grounding conductor has been changed for this code cycle as pertaining to article 810 to Bonding Jumper, or Equipment Grounding Conductor (EGC) to clarify its function and application.

ARTICLE 800.154 Application of Listed Communications Wires, Cables and Raceways. Table 800.154(a) lists the permitted and non-permitted use of listed Communications Wires, Cables, and Raceways. The permitted applications for these systems are subject to the installation requirements of 800.110 and 800.113.

InformationalNotes


ARTICLE 800.110 Raceways for Communications Wires and Cables (A)(1)(A)(2). Communications wires and Cables are permitted to be run in any raceway system as described in 800.110 (A)(1) or (A)(2). Communications wires and Cables are permitted in any raceway listed in Chapter 3 of this code, (Chapter 3 contains information with regards to raceway system installations). The raceway systems listed in Chapter 3 that contain these systems must be installed as per the requirements of Chapter 3 and the individual raceway system. Communications wires and Cables are allowed to be run in a plenum communications raceway,

306. Coaxial cable is permitted in any listed raceway system as allowed by Chapter ________ of this code.A) 1B) 2C) 3D) 6

307. True or False, raceway systems that contain coaxial cables are not required to be installed by the requirements of Chapter 3.A) TrueB) False

308. Would it be considered acceptable or a violation of this code to run coaxial cable in a raceway through a plenum that houses CAT 6 communications cable.A) AcceptableB) Violation

309. 820.100 informational note describes the possibility of attaching the ________ of a coaxial cable to an equipment grounding conductor under certain conditions.A) JacketB) CoveringC) ShieldD) Signal Conductor

310. Connecting the shield of a coaxial cable directly to the Equipment Grounding Conductor of a grounded receptacle is acceptable provided the EGC is ________.A) DedicatedB) SufficientC) BareD) No listed answer

311. Would it be considered acceptable or a violation of this code to connect the shield of a coaxial cable to the EGC of a 480 volt motor feeder conductor set.A) AcceptableB) Violation

312. True or False, an existing coaxial cable shield can be extended to a nearby grounded listed receptacle using a cord and plug type connection as long as the grounded receptacle has a dedicated equipment grounding conductor.A) TrueB) False

313. To comply with the 820.100 exception, the coaxial cable needs to be run ________ from any existing cables or the raceways that house them. A) ParallelB) PerpendicularC) IsolatedD) All Listed answers

314. The language changing bonding jumper and equipment grounding conductor from grounding conductor is discussed in the first informational note of article ______.A) 820B) 830C) 810D) All listed answers

315. To determine if a listed CMR wire can be installed in a raceway that passes into a plenum used for communications systems, table ________ must be used.A) 810.5B) 800.154(a) C) 820.34(b)D) No listed answer

316. If you were to install type CMP cable in a fabricated duct for environmental air, section ________ shall be used.A) 800.113B) 800.115C) 800.154(a)D) 800.56

Exam Questions:


317. Communication wires and cables are permitted in any listed raceway system as allowed by Chapter ________ of this code.A) 1B) 2C) 3D) 6

318. True or False, raceway systems that contain communication cables are not required to be installed by the requirements of Chapter 3.A) TrueB) False

319. Would it be considered acceptable or a violation of this code to run a CAT 6 communications cables in a raceway through a plenum that houses coaxial cable.A) AcceptableB) Violation

320. How many CAT 5 Communications Cables can be installed in a 1” ENT raceway system.A) 5B) 7C) As many that will fitD) No listed answer

321. A 1 ½” ENT Raceway that contains CAT 5 communications cable installed in a plenum would be considered a _________.A) Raceway systemB) Data HousingC) Field Bus SystemD) Communications Raceway

322. To determine if a listed OFNP cable can be installed in a raceway that is installed in a place used for environmental air, table ________ must be used.A) 770.5B) 770.154(a)C) 770.34(b)D) No listed answer

Exam Questions:

a listed general purpose communications raceway, and a listed riser communication raceway. The raceway fill requirements of Chapter 3 and 9 do not apply to Communications wires and Cables.

ARTICLE 800.2 Definitions Communications Raceway: An enclosed Channel of nonmetallic materials designed for holding communications wire and cables in plenum, riser, and general purpose applications.

ARTICLE 700.154 Application of Listed Optical Fiber Cables and Raceways, and Cable Routing Assemblies. Table 770.154(a) lists the permitted and non-permitted use of listed Optical Fiber Cables and Raceways, and Cable Routing Assemblies. The permitted applications for these systems are subject to the installation requirements of 770.110 and 770.113.

ARTICLE 770.110 Raceways for Optical Fiber Cables (A)(1)(A)(2). Optical Fiber Cables are permitted to be run in any raceway system as described in 770.110 (A)(1) or (A)(2). Optical Fiber Cables are permitted in any raceway listed in Chapter 3 of this code, (Chapter 3 contains information with regards to raceway system installations). The raceway systems listed in Chapter 3 that contain these systems must be installed as per the requirements of Chapter 3 and the individual raceway system. Optical Fiber Cables are allowed to be run in a listed plenum communications raceway, a listed general purpose optical fiber raceway, and a listed riser optical fiber raceway. The raceway fill requirements of Chapter 3 and 9 do not apply to optical fiber cables if no electric power or lighting circuits share the same raceway. However, if power and lighting conductors share the same raceway as the optical fiber cables, then the fill requirements of chapters 3 and 9 shall apply.


323. If you were to install type OFNP cable in a fabricated duct for environmental air, section ______ shall be used.A) 770.113B) 770.115C) 770.154(a)D) 800.56

324. Optical Fiber cables are permitted in any listed raceway system as allowed by Chapter ________ of this code.A) 1B) 2C) 3D) 6

325. True or False, raceway systems that contain Optical Fiber cables are required to be installed by the requirements of Chapter 3.A) TrueB) False

326. Would it be considered acceptable or a violation of this code to run 277 Volt lighting circuits in the same raceway that contains Optical Fiber cable.A) AcceptableB) Violation

327. True or False, under no circumstance is it required to use the chapter 3 and 9 fill requirements for Optical Fiber cables.A) TrueB) False

ARTICLE 770.2 DefinitionsCable Routing Assembly. A single channel or connected multiple channels, as well as associated fittings, forming a structural system that is used to support, route and protect high densities of wires and cables, typically communications wires and cables, optical fiber and data (Class 2 and Class 3) cables associated with information technology and communications equipment.Conductive Optical Fiber Cable. A factory assembly of one or more optical fibers having an overall covering and containing non–current-carrying conductive member(s) such as metallic strength member(s), metallic vapor barrier( s), metallic armor or metallic sheath.Nonconductive Optical Fiber Cable. A factory assembly of one or more optical fibers having an overall covering and containing no electrically conductive materials.Optical Fiber Cable. A factory assembly of one or more optical fibers, having an overall covering, that transmits light for control, signaling, and communications.Optical Fiber Raceway. An enclosed channel of nonmetallic materials designed for holding optical fiber cables in plenum, riser, and general-purpose applications.

ARTICLE 760.176 (C) Listing and Marking of NPLFA Cables.Informational Note: To determine if a cable is low smoke–producing and fire-resistant. The cable shall exhibit a maximum peak optical density of 0.5 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.52 m (5 ft) or less when tested in accordance with NFPA standards.III. Power-Limited Fire Alarm (PLFA) Circuits Power Sources for PLFA Circuits

ARTICLE 760.121(B) Branch Circuit.A branch circuit that supply’s the fire alarm equipment(s) is required by this code to serve no other loads. Where the circuit originates, it shall be permanently labeled at the fire alarm control unit. The circuit disconnecting means is required to have its identification marked using the color red. The circuit that provides power to the FA system shall be accessible only to qualified personnel, and must be marked as “FIRE ALARM CIRCUIT.” When marking the breaker, the red identifier shall not damage the breaker or obscure the manufacturer’s markings.

InformationalNotes


328. A Structural system that supports and protects communications and Optical fiber cables is known as a ________.A) Optical Fiber CableB) Nonconductive Optical Fiber CableC) Cable Routing AssemblyD) Conductive Optical Fiber Cable

329. A factory assembly of optical fibers having an overall covering and containing non–current-carrying conductive members would be considered a ________.A) Conductive Optical Fiber CableB) Optical Fiber RacewayC) Nonconductive Optical Fiber CableD) Optical Fiber Cable

330. A factory assembled optical fiber cable having an overall covering that contains no electrically conductive materials is known as a ________. A) Optical Fiber CableB) Conductive Optical Fiber CableC) Optical Fiber RacewayD) Nonconductive Optical Fiber Cable

331. One or more optical fibers factory assembled having an overall covering that transmits light would be considered a ________.A) Conductive Optical Fiber CableB) Optical Fiber CableC) Optical Fiber RacewayD) Nonconductive Optical Fiber Cable

332. An enclosed nonmetallic channel designed to hold optical fiber cables for general-purpose applications is known as ________.A) Cable Routing AssemblyB) Optical Fiber CableC) Nonconductive Optical Fiber CableD) Optical Fiber Raceway

333. A quality indicative for a fire-resistant cable is one that has a max peak optical density of ________ or less.A) 0.5B) 0.6C) 1.0D) all listed answers

334. One would expect to see a low smoke-producing cable to exhibit an average optical density of ________ or less.A) 0.17B) 0.9C) 0.2D) 0.15

335. The maximum flame spread for a cable classified as fire-resistant would be ________ or less.A) 5’B) 5.5’C) 6.3D) 7

336. The circuit that supply’s a Fire alarm panel is required to be ________.A) PLC ControlledB) Type LC) DedicatedD) Oversized

337. The Fire Alarm unit is required to have a ________ marking of where it is being fed from.A) ListedB) PermanentC) FactoryD) All listed answers

338. A 20 amp single pole breaker that feeds a FA system is required to be identified ________.A) By systemB) ClearlyC) At its sourceD) Red

339. The subpanel that feeds a Fire Alarm system is required to be accessible only to _______ people.A) SeasonedB) SkilledC) QualifiedD) Maintenance

340. The 2011 Code tells us that a Fire Alarm breaker (Overcurrent Device) needs to be identified by the color red and the words ________.A) FACPB) Fire CircuitC) FIRE ALARMD) FIRE ALARM CIRCUIT

Exam Questions:


341. A raceway that contains fire alarm cables that enter from outside is required to have the inside of the raceway ________with an approved material.A) SealedB) FilteredC) AssembledD) Insulated

342. Article 760 references article _____ for specific installation requirements when you have a raceway system exposed to different temperatures that contain FA cable. A) 300.17B) 300.19C) 300.15(C)D) 300.7

343. A type CI cable is run vertically from a basement FACP to the attic of a 4 story building. The manufacturers vertical support distances are less than what is required by this code. The vertical supporting requirements of the ________would be used for this scenario. A) CodeB) Manufacturer

344. Article 760 references article ________ for specific installation requirements when you need information for supporting FA cable vertically.A) 300.7B) 300.17C) 300.15D) 300.19

ARTICLE 760 Fire Alarm Circuits. This Article has changed some requirements for raceways that contain Fire Alarm Systems.

ARTICLE 760.3(H) Requires raceways or sleeves exposed to different temperatures be filled with an approved material to stop the circulation of the different temperatures when a raceway or sleeve enter a structure from outside as with its reference to 300.7 for this installation situation.

ARTICLE 760.3(I) Require supporting fire rated cables vertically at the minimum values as listed in table 300.19(A). If the manufactures requirements are stricter than what is required by table 300.19(A), then the more stringent of the 2 supporting requirements shall be used.

ARTICLE 760.3(J) Requires a raceway never to be filled with more conductors than will permit dissipation of the heat without causing damage to the conductors or cables.

ARTICLE 760.3(K) The ends of a raceway do not need to terminate into a box that provide support or protection for cables against physical damage, but the use of a bushing on each end is required.

ARTICLE 725.154 (D) Industrial Establishments. This section permits industrial establishments that ensure only qualified persons install type PLTC cable to have the ability provided that the cable is not subject to physical damage. The cable needs to also comply with the crush and impact requirements of Type MC Cable and is identified as PLTC-ER for this type of use. The cable can then be installed exposed between a cable tray and the utilization equipment it connects to.

ARTICLE 708 Critical Operations Power Systems (COPS).708.10 (A)(2) requires the cover plates of receptacles powered by COPS systems to be a distinctive color or marking so as to be readily identifiable and distinguishable from other systems. The COPS systems is primarily used for critical operations facilities in the event of a natural disaster or terrorist attack.

Exam Questions:


345. True or false, Article 760 allows maximum fill for FA cables installed in a raceway so long as the cables fit.A) True B) False

346. Article 760 references article ________ for the installation requirements when you need information with regards to conduit fill that contain FA cables.A) 300.19B) 300.7C) 300.17D) 300.15

347. A conduit that is installed for the physical protection of FA cables is required to have ________ on either end if it does not terminate into a box.A) BushingsB) Throated connectorsC) Meyers HubsD) All listed answers

348. Article 760 references article ________ on how to leave the ends of a raceway that contain FA cables.A) 300.19B) 300.15(C) C) 300.7D) 300.15

349. Only ________ individuals are allowed to install PLTC cable in an industrial facility.A) SeasonedB) ExperiencedC) QualifiedD) Maintenance

350. PLTC cable cannot be installed in an industrial setting if exposed to ________ damage.A) PhysicalB) HeatC) MoistureD) UV

351. PLTC Cable used in an industrial facility is required the same crush and impact characteristics as type ________ cable.A) NMCB) SOC) MID) MC

352. Would it be considered acceptable or a violation of this code to run PLTC cable directly from a cable tray system to a piece of equipment provided all the code requirements are met.A) AcceptableB) Violation

353. In article 708 COPS stands for __________.A) Critical Operational Phase SystemsB) Critical Operations Power SystemsC) Critical Operating Power SystemsD) Civil Operations and Power Systems

354. The cover plate of a receptacle powered by a COPS circuit is required to be ________.A) ColoredB) MarkedC) LabeledD) All listed answers

ARTICLE 705 Interconnected Electric Power Production Sources.

ARTICLE 705.2 Definitions.

Power Production Equipment. The generating source, and all distribution equipment associated with it, that generates electricity from a source other than a utility supplied service.Informational Note: Examples of power production equipment include such items as generators, solar photovoltaic systems, and fuel cell systems.

ARTICLE 705.6 System Installation. This code requires that if one or more electrical power production sources are being installed and operating in parallel with the main electrical source, then the system is required to be installed only by qualified person.

InformationalNotes


355. A power source with all its associated equipment that generates power without the help of the utility would be considered ________.A) Utility-Interactive Inverter Output CircuitB) Interactive Output CircuitC) Utility Output CircuitD) Power Production Equipment

356. True or False, a solar panel on the roof of your neighbor’s house would be considered power production equipment.A) TrueB) False

357. True or False, the 2011 Code specifies who is considered acceptable to install electrical power production sources.A) True B) False

358. The bus or conductor loading calculation for a stand-alone PV system is required to be________ of the rated utility-interactive current from the inverter.A) 100 %B) 115 %C) 125 %D) 130 %

359. Would it be considered acceptable or a violation of this code for a transfer switch to disconnect the grounding electrode conductor of a backup generator while the normal service power is energized.A) AcceptableB) Violation

360. A warning sign installed at the ________ warning of a potential shock hazard is required if a generators operation effects the service bond or grounding system. A) GeneratorB) OfficeC) ServiceD) Service yard

ARTICLE 705.12 Utility-Interactive Inverters. (D)(2) Exception: If a photovoltaic system has an energy storage device that allows a stand-alone operation of loads, then the value used in the calculation of bus or conductor loading is required to be 125 percent of the rated utility-interactive current from the inverter. The rating of the overcurrent device between the inverter and the bus or conductor will not be used.

ARTICLE 702 Optional Standby Systems. 702.7(B) Grounding. If the removal of grounding or bonding connection in a normal power source interrupts the grounding electrode conductor connection to the alternate power sources grounded conductor, a warning sign is required to be installed at the normal power source equipment and state:

WARNING SHOCK HAZARD EXISTS IF GROUNDING ELECTRODE CONDUCTOR OR BONDING JUMPER CONNECTION IN THIS EQUIPMENT IS REMOVED WHILE ALTERNATE SOURCE(S) IS ENERGIZED.

ARTICLE 701 Legally Required Standby Systems. 701.6 (D) Ground Fault. To determine if a ground fault has occurred in a solidly grounded wye legally required standby system. A sensor to detect these groundfaults is required to be installed ahead of or at the main disconnect for such a standby system, and can only be set to a maximum ground-fault current of 1200 amperes . This sensor is required for systems 150 volts to ground and circuit-protective devices rated 1000 amperes or more. A posted set of instructions near or at the sensor need to explain what to do in the event of a groundfault.

Exam Questions:


361. A legally required standby system over ________ to ground is required to have a sensor installed.A) 150 MVB) 150 voltsC) 135 voltsD) 135 MV

362. True or False, The placement of the sensor for a legally required standby system can only be done at its service disconnect.A) True B) False

363. A set of _______ need to posted by the sensor describing what to do if there is an issue.A) InstructionsB) DiagramsC) ListingsD) All listed answers

364. The sensor used to detect ground faults in legally required standby systems can be set to a maximum ground-fault current of ________ amperes.A) 1200B) 1220C) 1250D) 1800

ARTICLE 700 Emergency Systems.700.24 Automatic Load Control Relay. An emergency lighting load that automatically energizes when normal power is lost must use a listed automatic load control relay. This is the only type of relay allowed to energize such loads. The listed automatic load control relay shall not be used as transfer equipment.

ARTICLE 700.12 (F) Exception 2.Remote heads that provide emergency lighting and that are installed indoors by an exit door are now allowed to supply power to emergency lighting fixtures directly outside of the exit door.

ARTICLE 700.12(B)(6) Outdoor Generator Sets. Outdoor generators that serve a building or structure equipped with a readily accessible disconnecting means that are located within sight of the building or structure supplied are not required to have an additional disconnecting means where ungrounded conductors serve or pass through the building or structure. The disconnect shall meet the requirements of 225.36. However, the 700.12(B)(6) Exception: allows the disconnecting means for a generator to not be located within sight of the building or structure served if it is an installation under single management where maintenance and supervision ensure that only qualified persons will monitor and service the generator, and where documented safe switching procedures are established and maintained for disconnection.

ARTICLE 700.10 Wiring, Emergency System. (B)(5)(d). The 2011 Code allows for single or multiple feeders to supply distribution equipment between an emergency source and the point where the combination of emergency, legally required, or optional loads are separated.


ARTICLE 700.2 DefinitionsEmergency Systems. Those systems legally required and classed as emergency by municipal, state, federal, or other codes, or by any governmental agency having jurisdiction. These systems are intended to automatically supply illumination, power, or both, to designated areas and equipment in the event of failure of the normal supply or in the event of accident to elements of a system intended to supply, distribute, and control power and illumination essential for safety to human life.

365. A listed ________relay is the only devise the code will accept to energize emergency lighting loads. A) ManualB) I/O logicC) Ice cube D) Automatic control

366. True or False, an automatic load control relay has a dual purpose of also transferring equipment loads.A) TrueB) False

367. Would it be considered acceptable or a violation of this code to directly connect an external 277v wall pack for emergency lighting within 3 feet of an exit door to an internal emergency light supplied by a 277v source.A) AcceptableB) Violation

368. An outdoor generators disconnect is required to meet the installation requirements of ________.A) 223.56B) 225.63C) 225.36D) 220.36

369. Is it required or not required for an outdoor generator that has a local disconnect installed within sight of a building to also add extra disconnects for ungrounded conductors that serve or pass through the building.A) RequiredB) Not required

370. True or False, under no circumstance shall an outdoor generator have its disconnect installed so it is not within sight of the building or structure for which it serves. A) TrueB) False

371. A building under single management that has an outdoor generator installed is allowed to have its generators disconnect not located within line of sight of the building if only ________ persons monitor the generators operation.A) QualifiedB) MaintenanceC) TrainedD) All listed answers

372. A ________ switching program is a requirement to install an outdoor generators disconnect not within line of sight of the building or structure for which it serves.A) ControlledB) RegisteredC) SafeD) Transfer

373. Would it be considered acceptable or a violation of this code to have a common enclosure where legally required, optional, and emergency loads enter.A) Acceptable B) Violation

374. ________ or Multiple ________ are allowed to supply distribution equipment between emergency sources and where the combination of emergency, legally required, or optional loads are separated.A) Single, DisconnectsB) Bundling and, SwitchesC) Single, FeedersD) No listed answer

Exam Questions:


Relay, Automatic Load Control. A device used to energize switched or normally-off lighting equipment from an emergency supply in the event of loss of the normal supply, and to de-energize or return the equipment to normal status when the normal supply is restored.

ARTICLE 695.14 Control Wiring, Fire Pumps (F) Generator Control Wiring Methods. The control conductors that serve stand by generators for fire pumps are required to be run separately from other conductors between the fire pump transfer switch and the generator. The raceway systems are required to be protected by ONE of the following methods:

(1) Be encased in a minimum of 50 mm (2 in.) of concrete.(2) Be protected by a fire-rated assembly listed to achieve

a minimum fire rating of 2 hours and dedicated to the fire pump circuits.

(3) Be a listed electrical circuit protective system with a minimum 2-hour fire rating. The installation shall comply with any restrictions provided in the listing of the electrical circuit protective system used.

ARTICLE 695.7 Voltage Drop. (A) Starting. When a fire pump starts under normal conditions, the controller’s rated voltage at the controller line terminals cannot drop below 15 percent.

375. A legally required emergency system receives its classification from ________ bodies.A) StateB) FederalC) Government D) All listed answers

376. An emergency system is installed to protect ________.A) HumansB) EquipmentC) StructuresD) All listed answers

377. Emergency systems are intended to automatically supply________, power, or bothA) WaterB) IlluminationC) HeatD) Pumps

378. An ________ relay is used to switch normal power to emergency power in the event of a normal power loss situation.A) Auto LevelB) Ice CubeC) AuxiliaryD) Automatic Load Control

379. A stand by generator that feeds a fire pump is required to have its control conductors _____ from other conductors.A) IsolatedB) JoinedC) ConnectedD) Marked

380. Protection of control wiring for generators that feed fire pumps is addressed in article _______.A) 682B) 695C) 700D) 725

Exam Questions:


384. When a conduit hub is used at a fire pump controller, it is required to be ________.A) OversizedB) RatedC) ListedD) Sealed

385. The type rating of a conduit hub used at a fire pump controller is required to be at least ________ to that of the fire pump controller.A) EqualB) GreaterC) LessD) No listed answer

381. The 2011 Code Specifically identifies ________ methods for protecting control wiring for generators that support fire pumps.A) 3B) 2C) 4D) 7

382. A method of protecting control wiring of generators that service fire pumps is by a fire-rated assembly listed to achieve a minimum fire rating of ________ and dedicated to the fire pump circuits.A) 1 hourB) 45 minutesC) 50 minutesD) 2 hours

383. Would it be considered acceptable or a violation of this code for a fire pump controllers rated voltage to drop 18 percent upon start up.A) AcceptableB) Violation

Exam Questions:

ARTICLE 695.6 Power Wiring. (J) Raceway Terminations. The 2011 Code has added language when a raceway terminates at a fire pump controller and requires the following shall be met:

(1) Listed conduit hubs shall be used. (2) The type rating of the conduit hub(s) shall be at least equal to that of the fire pump controller. (3) The installation instructions of the manufacturer of the fire pump controller shall be followed. (4) Alterations to the fire pump controller, other than conduit entry as allowed elsewhere in this Code, shall

be approved by the authority having jurisdiction.

ARTICLE 695.6 (I) Junction Boxes. The 2011 Code has added language when fire pump controller wire is routed through a junction box, the following shall be met:

(1) The junction box shall be securely mounted. (2) Mounting and installing of a junction box shall not violate the enclosure type rating of the fire pump controller(s). (3) Mounting and installing of a junction box shall not violate the integrity of the fire pump controller(s) and

shall not affect the short-circuit rating of the controller(s)(4) As a minimum, a Type 2, drip-proof enclosure (junction box) shall be used where installed in the fire pump

room. The enclosure shall be listed to match the fire pump controller enclosure type rating. (5) Terminals, junction blocks, wire connectors, and splices, where used, shall be listed. (6) A fire pump controller or fire pump power transfer switch, where provided, shall not be used as a junction

box to supply other equipment, including a pressure maintenance (jockey) pump(s).


ARTICLE 695.6 (H) Listed Electrical Circuit Protective System to Controller Wiring.This new subsection has been added to clarify electrical circuit protective system installations and to also comply with any restrictions listed for the circuit protective system.Electrical circuit protective system installation shall comply with any restrictions provided in the listing of the electrical circuit protective system used and the following also shall apply:

(1) A junction box shall be installed ahead of the fire pump controller a minimum of 300 mm (12 in.) beyond the fire-rated wall or floor bounding the fire zone.

(2) Where required by the manufacturer of a listed electrical circuit protective system or by the listing, or as required elsewhere in this Code, the raceway between a junction box and the fire pump controller shall be sealed at the junction box end as required and in accordance with the instructions of the manufacturer.

(3) Standard wiring between the junction box and the controller shall be permitted.

386. True or False, the manufacturers installation instructions are not required to be followed for a fire pump controller.A) TrueB) False

387. The ________ can allow alterations to a fire pump controller.A) ContractorB) ElectricianC) Trades PersonD) AHJ

388. The 2011 Code lists ________ provisions when conduits enter a fire pump controller.A) 2B) 3C) 4D) 5

389. A junction box that houses fire pump controller wire is required to be mounted ________.A) SecurelyB) With conduitC) DirectlyD) With kendorf

390. If mounting a junction box for fire pump controller wire, it is important that the junction box does not violate the ________ rating of the fire pump controller.A) ClassificationB) AreaC) TypeD) Location

391. Using a junction box for fire pump controller wire is acceptable so long as the junction box does not affect the ________ of the controller.A) Short circuit ratingB) IntegrityC) OperationD) All listed answers

392. If installing a junction box in a fire pump room, it shall be a minimum of a Type ________ drip-proof enclosure if it houses fire pump controller wire. A) 1B) 2C) 3D) 4

393. A junction box is required to be ________ to match the fire pump controller enclosure type rating.A) ListedB) RatedC) DesignedD) Manufactured

394. Splices and connections are allowed to be made in junction boxes that house fire pump control wire as long as the type of connections are ________. A) RatedB) DesignedC) SolidD) Listed

395. True or false, a fire pump power transfer switch can be used as a junction box to supply other equipment.A) TrueB) False


396. A junction box must be installed a minimum of ________ beyond the fire rated wall of the electrical circuit protective system.A) 10 inchesB) 11 inchesC) 12 inchesD) All listed answers

397. A raceway installed between a junction box and the fire pump controller is required to be ________ at the junction box end.A) CompleteB) ListedC) RatedD) Sealed

398. Would it be considered acceptable or a violation of this code to use standard wiring methods between a fire pump controller and a junction box.A) AcceptableB) Violation

399. A fire pump controller ________ serve any load other than the fire pump.A) MayB) Can NotC) Shall NotD) Will

400. The feeder conductors for a fire pump shall be kept ________ independent of all other wiring.A) EntirelyB) SomewhatC) PartiallyD) Mostly

401. True or False, feeders that supply a fire pump system are allowed to feed power to other non-fire pump systems.A) TrueB) False

Exam Questions:

ARTICLE 695.6 (E) Loads Supplied by Controllers and Transfer Switches. This is a new subsection that was added to clarify the requirements for loads supplied by fire pump controllers and transfer switches.A fire pump controller and fire pump power transfer switch, if provided, shall not serve any load other than the fire pump for which it is intended.

ARTICLE 695.6 (A)(2) Feeders. (a)(b)(c)(d). Fire pump supply conductors or conductors that connect directly to an on-site standby generator on the load side of the final disconnecting means as allowed by 695.4(B) are required to comply with all of the following:

(a) Independent Routing. The conductors shall be kept entirely independent of all other wiring.(b) Associated Fire Pump Loads. The conductors shall supply only loads that are directly associated with the

fire pump system.(c) Protection from Potential Damage. The conductors

shall be protected from potential damage by fire, structural failure, or operational accident.

(d) Inside of a Building. Where routed through a building, the conductors shall be installed using one of the following methods:(1) Be encased in a minimum 50 mm (2 in.) of concrete(2) Be protected by a fire-rated assembly listed to

achieve a minimum fire rating of 2 hours and dedicated to the fire pump circuit(s)

(3) Be a listed electrical circuit protective system with a minimum 2-hour fire rating


402. When installing the feeder conductors that will service a fire pump, the conductors shall be protected from potential damage by ________.A) FireB) Structural failureC) Operational accidentD) All listed answers

403. A method for protecting feeders that serve a fire pump routed through a building is to encase then in a minimum of ________ concrete.A) 1 inchB) 1 ½” C) 2 inchesD) No listed answer

404. A method for protecting feeders that serve a fire pump routed through a building is to be protected by a fire-rated assembly listed with a minimum fire rating of ________ and dedicated to the fire pump circuit(s)A) 1 hourB) 45 minutesC) 30 minutesD) 2 hours

405. A method for protecting feeders that serve a fire pump routed through a building is to have a listed electrical circuit protective system with a minimum ________ fire rating.A) 2 hourB) 1 ½ hourC) 1 hourD) 45 minutes

406. The 2011 Code lists ______ different options for protecting feeders for fire pumps that route through a building.A) 2B) 3C) 4D) 7

ARTICLE 695.3 (F) Phase Converters. Phase converters are not allowed to be used for fire pump service.

ARTICLE 695.3 (E) Arrangement. All power supplies for fire pumps shall be installed as to protect against damage by fire from within the structure and exposing hazards. Multiple power sources are required to be installed so that a fire at one source does not cause an interruption at the other source.

ARTICLE 695.3 (D) On-Site Standby Generator as Alternate Source. An on-site standby generator(s) used as an alternate source of power for fire pumps shall comply with (D)(1) through (D)(3).

(1) Capacity. The generator shall have sufficient capacity to allow normal starting and running of the motor(s) driving the fire pump(s) while supplying all other loads simultaneously. Automatic shedding of one or more optional standby loads in order to comply with this capacity requirement is permitted.

(2) Connection. A tap ahead of the generator disconnecting means shall not be required. (3) Adjacent Disconnects. The requirements of 430.113 shall not apply. 430.111 states motor and motor-operated

equipment receiving electric energy from more than one source shall be provided with disconnecting means from each source of electric energy immediately adjacent to the equipment served.

ARTICLE 692.4 (C) System Installation. The installation of Fuel cell systems including all associated wiring is required to be installed only by qualified persons.

ARTICLE 690.74 (A) Flexible Cables. Battery connections using flexible, fine-stranded cables for solar photovoltaic (PV) systems shall be terminated only with terminals, lugs, devices, or connectors in accordance with 110.14(A).


407. True or false, phase converters are permitted to be used for fire pumps.A) TrueB) False

408. A major concern when protecting fire pump power supplies is from the threat of________.A) MoistureB) WaterC) FireD) Harmonics

409. True or False, multiple power supplies for a fire pump are required to be so installed that fire at one source does not affect the operation of the others.A) TrueB) False

410. Would it be considered acceptable or a violation of this code to use a common standby generator to power the motors for a fire pump system as well as normal building systems.A) AcceptableB) Violation

411. If a generator is used to power motors for fire pumps as well as other build systems simultaneously, it shall have sufficient ________ for this use.A) FuelB) Eddie CurrentC) InductanceD) Capacity

412. Automatic ________ of one or more optional standby loads in order to comply with the fire pump operational capacity requirement is permitted.A) LoadingB) CascadingC) SheddingD) Inversion

413. True or False, tapping ahead of a generators disconnect in order to feed a motor for a fire pump is required if the generator feeds other building systems upon start up.A) TrueB) False

414. True or False, multiple optional standby systems that feed fire pump motors are required to have a disconnect installed for each source adjacent to the motors being fed as required by 430.113.A) TrueB) False

415. The 2011 Code lists _______ provisions for on-site standby generators used as an alternate source for powering fire pump motors.A) 2B) 3C) 4D) 5

416. Would it be considered acceptable or a violation of this code for a licensed and bonded plumbing contractor to install a fuel cell system if they were trained to recognize the hazards involved and qualified for such an installation.A) AcceptableB) Violation

417. The requirements of ________ shall be used when making battery connections using fine stranded flexible cables.A) 110.14B) 110.13(A)C) 110.14(A)D) 110/13

Exam Questions:


418. The 2011 Code lists ________ provision(s) to follow when using buck/boost charge controllers for photovoltaic (PV) systems.A) 1B) 2C) 3D) 4

419. The ampacity for conductors in output circuits using buck/boost charge controllers for PV systems shall be based on the ________ rated continuous output current of the charge controller.A) MinimumB) LoadC) ContinuousD) Maximum

420. The voltage for conductors in output circuits using buck/boost charge controllers for PV systems shall be based on the ________ rated continuous output voltage of the charge controller.A) MaximumB) MinimumC) LoadD) Continuous

421. The Unbalanced connections for solar photovoltaic (PV) systems are required to be installed in accordance with ________.A) 705.10B) 705.100C) 704.100D) 704.10

ARTICLE 690.72 (C) Buck/Boost Direct-Current Converters. When buck/boost charge controllers and other dc power converters used in solar photovoltaic (PV) systems that increase or decrease the output current or output voltage with respect to the input current or input voltage are installed, the requirements of 690.72(C)(1) and (C)(2) shall be followed.

(1) The ampacity of the conductors in output circuits shall be based on the maximum rated continuous output current of the charge controller or converter for the selected output voltage range.

(2) The voltage rating of the output circuits shall be based on the maximum voltage output of the charge controller or converter for the selected output voltage range.

ARTICLE 690.63 Unbalanced Interconnections. Unbalanced connections for solar photovoltaic (PV) systems shall be in accordance with 705.100.

ARTICLE 690.64 Point of Connection. Point of connection for a solar photovoltaic (PV) system shall bein accordance with 705.12.

ARTICLE 690.47(C)(3) Combined Direct-Current Grounding Electrode Conductor and Alternating-Current Equipment Grounding Conductor.A combined solar photovoltaic (PV) system equipment grounding conductor is required to be unspliced, or irreversibly spliced. This combined equipment grounding conductor shall be run from the marked dc grounding electrode conductor connection point along with the ac circuit conductors to the grounding busbar in the associated ac equipment. This combined grounding conductor shall be the larger of the sizes specified by 250.122 or 250.166 and shall be installed in accordance with 250.64(E).

Exam Questions:


ARTICLE 690.47 (C)(2) Common Direct-Current and Alternating-Current Grounding Electrode. A photovoltaic (PV) system dc grounding electrode conductor of the size specified by 250.166 shall be run from the marked dc grounding electrode connection point to the ac grounding electrode. If an ac grounding electrode is not accessible, the dc grounding electrode conductor shall be connected to the ac grounding electrode conductor in accordance with 250.64(C)(1). This dc grounding electrode conductor shall not be used as a substitute for any required ac equipment grounding conductors.

ARTICLE 690.47 (C)(1) Separate Direct-Current Grounding Electrode System Bonded to the Alternating-Current Grounding Electrode System. The 2011 Code has added this new subdivision that requires a separate dc grounding electrode or system to be installed if there is no direct connection between the dc grounded conductor and ac grounded conductor for a photovoltaic (PV) system. This dc system is required to be bonded directly to the ac grounding electrode system. The size of any bonding jumper(s) between the ac and dc systems shall be based on the larger size of the existing ac grounding electrode conductor or the size of the dc grounding electrode conductor specified by 250.166. The dc grounding electrode system conductor(s) or the bonding jumpers to the ac grounding electrode system shall not be used as a substitute for any required ac equipment grounding conductors.

ARTICLE 690.47(C) Systems with Alternating-Current and Direct-Current Grounding Requirements. A Photovoltaic system that has dc and ac circuits and having no direct connection between the dc grounded conductor and ac grounded conductor is required to have a dc grounding system. This dc grounding system is required to be bonded to the ac grounding system by one of the methods as specified in 690.47(C)(1), (2), or (3). This section does not apply to ac PV modules. When using the methods of (C)(2) or (C)(3), the existing ac grounding electrode system shall meet the applicable requirements of Article 250, Part III.

422. The Point of connection for a solar photovoltaic (PV) system is required to be done in accordance with ______.A) 705.12B) 705.10C) 704.12D) 704.10

423. A combined equipment grounding conductor used in a PV system that serves DC and associated AC equipment is required to be unspliced or ________.A) ContinuousB) Split BoltedC) Tie WiredD) Irreversibly spliced

424. The combined PV equipment grounding conductor shall be run from the marked ________ grounding electrode conductor connection point.A) ACB) ConnectedC) DCD) Listed

425. A combined Grounding Conductor used in a PV system for the AC and DC system is required to be the ________ of the sizes specified by 250.122 or 250.166.A) SmallerB) LargerC) CombinationD) Circular Mils

426. When installing a combined equipment grounding conductor for a PV system, the installation is required to be done in accordance with ________.A) 250.66B) 250.120C) 250.64(E)D) 250.36(C)


Exam Questions:

427. The DC grounding electrode conductor shall be run from the marked ________ grounding electrode connection point.A) ACB) ConnectedC) ListedD) DC

428. A dc grounding electrode conductor used for a PV system is required to be sized using the requirements of ________.A) 250.66B) 250.122C) 250.166D) 250.122(E)

429. The DC grounding electrode conductor for a PV system shall be run to the ________ grounding electrode.A) ACB) DCC) ListedD) Sized

430. If installing a PV system and the AC grounding electrode is not accessible, the DC grounding electrode conductor is allowed to be connected to the AC grounding electrode conductor as long as it complies with the requirements of ________.A) 250.166B) 250.66C) 250.122D) 250.64(C)(1)

431. Would it be considered acceptable or a violation of this code to substitute a DC grounding electrode conductor for any required AC equipment grounding conductors.A) AcceptableB) Violation

432. True or False, a photovoltaic (PV) system does not require a separate dc grounding electrode or system if a current 200 amp AC service exists.A) TrueB) False

433. A photovoltaic grounding system is required to be connected the ________ grounding electrode system.A) ACB) UtilityC) DistrictD) CATV

434. The bonding jumper that connects a DC and AC system together of a photovoltaic system is required to be sized based on the ________ grounding electrode conductor of either the AC or DC system. A) UtilityB) ServiceC) SmallerD) Larger

435. To size a DC grounding electrode conductor, the 2011 code requires one to look in ________. A) 250.122B) 250.66C) 250.166D) 430.52

436. True or False, a DC grounding system may be used as a substitute for any required ac equipment grounding conductors.A) TrueB) False

437. A dc grounding system is not required for a Photovoltaic system that has a ________connection between the dc and ac grounded conductors.A) PartialB) OpenC) NominalD) Direct

438. A dc grounding system is required to bond directly with the ________ grounding system.A) ACB) UtilityC) NetworkD) Telephone

439. True or False, alternating current photovoltaic modules are required to comply with 690.47(C)(2) or (C)(3).A) TrueB) False

440. To use the requirements of 690.47(C)(2) or (3), the ac grounding electrode system is required to meet the applicable provisions of Article 250, Part ________.A) IIB) IIIC) IVD) VII


Exam Questions:

441. A dc grounding electrode system is required to be installed as specified in ________.A) 250.166B) 250.169C) 250.66D) 250.122

442. The 2011 Code requires a dc grounding electrode conductor to be installed as per ________.A) 250.64B) 250.166C) 250.169D) 250.122

443. True or False, the 2011 code does not allow a common dc grounding-electrode conductor to serve multiple inverters.A) TrueB) False

444. A common grounding electrode tap conductor is required to be sized as per section ______ for a dc system.A) 250.196B) 250.122C) 250.166D) 250.66

445. Would it be considered acceptable or a violation of this code for a dc tap conductor to connect directly to a common grounding-electrode conductor.A) AcceptableB) Violation

446. Connecting dc tap conductors to a common grounding electrode conductor must be made by ________.A) Exothermic weldingB) Irreversible crimpC) Listed Split BoltD) All listed answers

ARTICLE 680.47(B) Direct-Current Systems. The grounding electrode system for a dc system is required to be installed in accordance with 250.166 for grounded systems or 250.169 for ungrounded systems. The grounding electrode conductor is required to be installed in accordance with 250.64. The 2011 Code allows a common dc grounding-electrode conductor to serve multiple inverters. The size of a common grounding electrode and tap conductors shall be in accordance with 250.166. Tap conductors are required to be connected to the common grounding-electrode conductor by exothermic welding or with connectors listed for such use. This connection is to be made in such a manner that the common grounding electrode conductor remains without a splice or joint.

ARTICLE 690.43 (D) Photovoltaic Mounting Systems and Devices. When devices and systems that are used for mounting PV modules are also used to provide grounding of the module frames, they are required be identified for the purpose of grounding the PV modules.

ARTICLE 690.43 (C) Structure as Equipment Grounding Conductor. Devices listed and identified for grounding the metallic frames of PV modules or other equipment shall be permitted to bond the exposed metal surfaces or other equipment to mounting structures. Metallic mounting structures, other than building steel, used for grounding purposes shall be identified as equipment-grounding conductors or shall have identified bonding jumpers or devices connected between the separate metallic sections and shall be bonded to the grounding system.


447. If the frame of a photovoltaic module is also used for grounding the system, then the frame must be ________ for that purpose.A) AddedB) IdentifiedC) InstalledD) All listed answers

448. A device listed to ground the metallic frame of a photovoltaic module is allowed by this code to ________ equipment to the mounting structure.A) WeldB) InstallC) AttachD) Bond

449. True or False, identified bonding jumpers connected between separate metallic sections for PV systems are required to be bonded to the grounding system.A) TrueB) False

450. If using the PV metallic mounting structures for grounding purposes, the 2011 code requires the mounting structures to be ________ as equipment-grounding conductors. A) IdentifiedB) MarkedC) LabeledD) All listed answers

ARTICLE 690.31 (E)(4) Marking and Labeling Methods and Locations. When any wiring systems are used for photovoltaic direct current systems, they are required to be labeled or marked, and shall be visible after installation. Photovoltaic power circuit labels shall appear on every section of the wiring system that is separated by enclosures, walls, partitions, ceilings, or floors. Spacing between labels or markings, or between a label and a marking, shall not be more than 3 m (10 ft). Labels required by this section shall be suitable for the environment where they are installed.

ARTICLE 690.31 (E)(3) Marking or Labeling Required. The 2011 Code has added this new subdivision to address the marking and labeling requirements of dc photovoltaic systems. The following wiring methods and enclosures that contain PV power source conductors shall be marked with the wording “Photovoltaic Power Source” by means of permanently affixed labels or other approved permanent marking:

(1) Exposed raceways, cable trays, and other wiring methods(2) Covers or enclosures of pull boxes and junction boxes(3) Conduit bodies in which any of the available conduit

openings are unused

ARTICLE 690.31 (E)(2) Flexible Wiring Methods. This new subdivision was added to the 2011 code to address flexible wiring systems that contain photovoltaic dc systems. Where flexible metal conduit (FMC) smaller than metric designator 21 (trade size 3⁄4) or Type MC cable smaller than 25 mm (1 in.) in diameter containing PV power circuit conductors is installed across ceilings or floor joists, the raceway or cable shall be protected by substantial guard strips that are at least as high as the raceway or cable. Where run exposed, other than within 1.8 m (6 ft) of their connection to equipment, these wiring methods shall closely follow the building surface or be protected from physical damage by an approved means.


Exam Questions:

451. Metal Clad cable used as a wiring method for a photovoltaic system is required to be ________.A) MarkedB) LabeledC) IdentifiedD) All listed answers

452. If using a flexible wiring method to install a PV system, the cable or system is required to be labeled at intervals not to exceed ________.A) 5 ftB) 10 ftC) 15 ftD) 20 ft

453. Labels used to mark PV systems cables are required to be ________ suitable.A) OpenlyB) DirectlyC) EnvironmentallyD) Systematically

454. True or False, photovoltaic power circuit labels are required to be installed on every section of a wiring system that is separated by a wall.A) TrueB) False

455. Any conduit or cable tray system that contains dc circuits for a photovoltaic system are required to be ________.A) PaintedB) DedicatedC) LabeledD) Rigid

456. A label that identifies dc conductors for a photovoltaic system are present is required to read “Photovoltaic ________”.A) Power SourceB) PotentialC) ServiceD) System

457. True or False, a pull box that have pass through dc photovoltaic conductors contained are not required to have a label affixed.A) TrueB) False

458. The affixed labels used to identify that dc photovoltaic circuits are present is required to have an approved _________ marking.A) LargeB) OpenC) PermanentD) Fixed

459. A flexible metal conduit that has a 1/2” diameter and is installed across ceiling floor joists that contains PV conductors is required to be protected by ________.A) Guard StripsB) 3/8” meshC) ¼” particle boardD) Mesh weave

460. A metal clad cable that has a 3/4” diameter and is installed across ceiling floor joists that contains PV circuits is required to be protected by ________.A) 1/8” meshB) 3/16” particle boardC) Mesh StrippingD) Guard Strips

461. True or False, PV cables are not required to closely follow the building surface or be protected from physical damage by an approved means if limited access to the cables is provided.A) TrueB) False

462. According to the 2011 code, a flexible wiring method installed for a PV system is not required to be protected within ________ of their connection to equipment. A) 6 ftB) 7 ftC) 8 ftD) 9 ft


DEPARTMENT OF LICENSING AND REGULATORY AFFAIRS DIRECTOR’S OFFICECONSTRUCTION CODE

Filed with the Secretary of State on May 30, 2013 These rules take effect July 1, 2013

(By authority conferred on the director of the department of licensing and regulatory affairs by section 4 of 1972 PA 230, MCL 125.1504, and Executive Reorganization Order Nos. 2003-1, 2008-4, and 2011-4, MCL 445.2011, 445 .2025, and 445 .2030)

R 408 .30801, R 408 .30806, R 408 .30808, R 408.30810, R 408 .30811, R 408 .30812,R 408.30815, R 408.30817 R 408.30818, R 408 .30819, R 408.30822, R 408.30823,R 408 .30826, R 408 .30827, R 408 .30835, R 408.30838, R 408.30865, R 408 .30869,R 408 .30870, R 408 .30871 and R 408 .30873 of the Michigan Administrative Code are amended and R 408 .30872 and R 408.30880 are rescinded as follows:

MICHIGAN PART 8. ELECTRICAL CODE

R 408 .30801 National electrical code; adoptions by reference; inspection; purchase. Rule 801. (1) The standards contained in the national electrical code, 2011 edition, except sections 110.24, 501.30B, 502.30B, 503.30B, 505.25B, 506.25B, 547.1 to 547.10, and Annex H, as published by the national fire protection association (NFPA), shall govern the installation, replacement, alteration, relocation, and use of electrical systems or material. With the exceptions noted, the national electrical code is adopted in these rules by reference.

(2) Informational notes contained within the body of the code are not adopted as a part of the code.

(3) All references to the ANSl/ASME A17 .1 2010, safety code for elevators and escalators mean the Michigan elevator code and all references to the national electrical code mean the Michigan electrical code.

(4) NFPA 110, standard for emergency and standby power systems, 2010 edition and NFPA 111, standard on stored electrical energy emergency and standby power systems, 201O edition, are adopted by reference in these rules.

(5) The codes are available for inspection at the Okemos office of the Michigan department of licensing and regulatory affairs, bureau of construction codes.

(6) The National Electrical Code, NFPA 110, and NFPA 111 may be purchased from the National Fire Protection Association, Batterymarch Park, Quincy, Massachusetts 02269 , or from the Michigan Department of Licensing and Regulatory Affairs, Bureau of Construction Codes, 2501 Woodlake Circle, Okemos, Michigan 48864 , at a cost as of the time of adoption of these rules of $90.00, $39.00, and $39.00 each, respectively.

Rule 805. Rescission. Rules 41 through 77 of the rules of the electrical administrative board, being R338.1041 to R 338.1077 of the Michigan Administrative Code, are rescinded.R408.30805

TITLE

Rule 807. Title. These rules shall be known as the Michigan electrical code, hereinafter referred to as “the code.”R 408.30807

ARTICLE 80 ADMINISTRATION AND ENFORCEMENT

80.1. Scope. The code regulates the design, installation, maintenance, alteration, and inspection of electrical systems including all wiring, fixtures , appliances , and appurtenances in connection with the utilization of electrical energy, within or on a building, structure, or properties, and including service entrance wiring as defined by the code .

Exception: 1- and 2-family dwellings and multiple single-family dwellings (townhouses) not more than 3 stories high with separate means of egress and their accessory structures shall comply with the Michigan residential code.


80.1.1. Intent. The purpose of the code is to provide minimum standards to safeguard life or limb, health, property, and public welfare by regulating and controlling the design, construction, installation, quality of materials, location, operation, and maintenance or use of electrical wiring and equipment.

80.1.2. Severability. If a section, subsection, sentence, clause, or phrase of the code is, for any reason, held to be unconstitutional, such decision shall not affect the validity of the remaining portions of the code.

80.1.3. Code conformity required. A person shall not install, alter, maintain, service, or repair, or cause or permit the installation, altering, maintaining, servicing, or repairing of electrical equipment in or on any building, structure, or part thereof, or on any premises, if by the person’s action the work does not conform to the provisions of the code.

80.3 Purpose. The purpose of this article shall be to provide requirements for administration and enforcement of the Michigan electrical code.

80.9. Applicability. Where there is a conflict between a general requirement and a specific requirement, the specific requirement shall govern. Where, in any specific case, different sections of this code specify different materials, methods of construction or other requirements, the most restrictive shall govern .

80.9.1 Application. (a) New installations. The code applies to new installations. Buildings with construction permits dated after adoption of the code shall comply with its requirements.

(b) Existing installations. Electrical systems lawfully in existence at the time of the adoption of this code shall be permitted to have their use and maintenance continued if the use, maintenance, or repair is in accordance with the original design and no hazard to life, health, or property is created by this electrical system as determined by the code official.

(c) Additions, alterations, or repairs. Additions, alterations, or repairs to any building, structure, or premises shall conform to that required of a new building without requiring the existing building to comply with all the requirements of the code. Additions, alterations, installations, or repairs shall not cause an existing building to become unsafe or to adversely affect the performance of the building as approved. Electrical wiring added to an existing service, feeder, or branch circuit shall not result in an installation that violates the provisions of the code in force at the time the additions are made.

R 408.30806

80.11. Occupancy of building or structure.(a) New construction. No newly constructed building may be occupied in whole or in part in violation of

the provisions of the code.(b) Existing buildings. Existing buildings that are occupied at the time of adoption of the code shall be

permitted to remain in use provided the following conditions apply:

(1) The occupancy classification remains unchanged.

(2) There exists no condition deemed hazardous to life or property that would constitute an imminent danger.R 408.30821

80.13. Stop work order, authority. Whenever the enforcing agency finds any work regulated by this code being performed in a manner either contrary to the provisions of this code or dangerous or unsafe, the enforcing agency may issue a stop work order.

80.13.1. Issuance. Notice shall be in accordance with the act. A person who is served with a stop work order, except for work that the person is directed to perform to remove a violation or unsafe condition, shall be subject to the penalty provisions prescribed by the act.

80.13.2. Unlawful continuance. Any person who shall continue any work after having been served with a stop work order, except the work as that person is directed to perform to remove a violation or unsafe condition, shall be subject to penalties as prescribed by law.


80.14. Duties and powers of the code official. The code official is authorized and directed to enforce the provisions of this code. The code official may render interpretations of this code and adopt policies and procedures in order to clarify the application of its provisions. These interpretations, policies, and procedures shall be in compliance with the intent and purpose of this code. These policies and procedures shall not have the effect of waiving requirements specifically provided for in this code.

80.14.1. Department records. The enforcing agency shall keep official records of applications received, permits and certificates issued, fees collected, reports of inspections, notices and orders issued. These records shall be retained in the official records for the period required for the retention of public records.

80.14.2. Identification. The code official shall carry proper identification when inspecting structures or premises in the performance of duties under this code.

80.14.3. Right of Entry. Whenever it is necessary to make an inspection to enforce the provisions of this code, or whenever the code official has reasonable cause to believe that there exists in any building or upon any premises any conditions or violations of this code that make the building or premises unsafe, unsanitary, dangerous , or hazardous , the code official shall have the authority to enter the building or premises at all reasonable times to inspect or to perform the duties imposed upon the code official by this code . If the building or premises is occupied, the code official shall present credentials to the occupant and request entry. If the building or premises is unoccupied, the code official shall first make a reasonable effort to locate the owner or other person having charge or control of the building or premises and request entry. If entry is refused, the code official shall have recourse to every remedy provided by law to secure entry.R 408 .30811

80.15. Means of appeal. An interested person may appeal the decision of the enforcing agency to the board of appeals in accordance with the act. An application for appeal shall be based on a claim that the true intent of the code or the rules governing construction have been incorrectly interpreted, the provisions of the code do not apply, or an equal or better form of construction is proposed. The decision of a local board of appeals may be appealed to the construction code commission in accordance with the act and timeframes.

80.15.1. Limitation of authority. The board of appeals shall have no authority relative to interpretation of the administration of the code nor shall such board be empowered to waive requirements of the code.

80.15.2. Qualifications. The board of appeals shall consist of members who are qualified in accordance with the act.R 408.30812

Exam Questions:

463. What types of dwellings are required to meet the Michigan residential code?A. Multiple single-family dwellingsB. Townhouses not more than 3 stories highC. 1- and 2-family dwellingsD. All listed answers

464. Would it be considered acceptable or a violation of this code to let the tenants of a 3 story office building move in early if the first 2 floors passed electrical inspection but there was a code violation found on the 3rd floor?A. AcceptableB. Violation

465. The Authority having jurisdiction can issue a ________ if the work being done is un-safe.A. Stop work orderB. FineC. SummonsD. Vacate order


80.18. Maintenance of existing wiring and equipment. Maintenance of existing wiring and equipment. Every building, structure, or part thereof shall be kept in good electrical repair by the owner.R 408 .30815

80.18.1. Disconnection of dangerous electrical equipment. If the use of any electrical equipment is found imminently dangerous to human life or property, the enforcing agency may condemn the equipment or disconnect it from its source of electric supply, except that the enforcing agency shall not disconnect the service entrance equipment or utility service drop wires unless the entrance equipment or utility wires in themselves constitute a hazard to life or property. If the enforcing agency condemns or disconnects dangerous equipment, then the agency shall place a notice on the equipment listing the causes for the condemnation or disconnection and the penalty under the act for the unlawful use of the equipment. The agency shall give written notice of the condemnation or disconnection and the causes for condemning or disconnecting the equipment to the owner or the occupant of the building, structure, or premises. A person shall not remove the notice or reconnect the electrical equipment to its source of electric supply, or use or permit the use of electrical current in the electrical equipment, until the causes for the condemnation or disconnection are remedied and a permit for the electrical repairs of the equipment is obtained from the enforcing agency.R 408 .30817

80.19. Permits and certificates. A person shall not equip a building with electrical conductors or equipment or make an alteration of, change in, or addition to, electrical conductors or equipment without receiving a written permit to do the work described. If the electrical installation or alterations of, changes in, or addition to, electrical conductors or equipment are found to be in compliance with the provision of the code and if the work has passed the inspection of the enforcing agency, then the enforcing agency shall, upon the request of the permit holder to whom the permit was issued, issue a certificate of final electrical inspection. The certificate certifies that the provisions of the code have been complied with. This section does not apply to installations that are referred to in section 7(3)(a), (b), (c), (d), (e), (f ), (h), (k), (I), or (o) of 1956 PA 217, MCL 338.887.

80.19.1. To whom permits are issued. (1) A permit for any type of electrical installation may be secured by 1 of the following:

(a) A holder of an electrical contractor license or the qualifying master for the electrical contractor when authorized by the electrical contractor to secure a permit.

(b) A homeowner who occupies or will occupy a single-family dwelling and other accessory structures located on the same lot intended for use by the homeowner for which the permit is obtained and who will install the electrical equipment as certified by the homeowner on the permit application pursuant to the act.

(2) A permit for a fire alarm system may be secured by the holder of a fire alarm specialty contractor license or the qualifying fire alarm specialty technician qualifying the fire alarm specialty contractor when authorized by the fire alarm specialty contractor to secure a permit.

(3) A permit for an electrical sign or outline lighting, as defined in section 1b(1) and

(2) of 1956 PA 217, MCL 338.881b(1) and (2), may be secured by the holder of a sign specialty contractor license or the sign specialty technician qualifying the sign specialty contractor when authorized by the sign specialty contractor to secure a permit.

(4) A permit for electrical wiring associated with the installation, removal, alteration, or repair of a water well pump on a single-family dwelling to the first point of attachment in the house from the well, may be secured by a registered pump installer under part 127 of 1978 PA 368, MCL 333.12701 to 333.12771.

(5) A permit for wiring associated with existing mechanical and plumbing systems referenced in section 7(3)(i) of 1956 PA 217 , MCL 338.887(3)(i ), may be secured by the following:

(a) A holder of a mechanical contractor license issued pursuant to section 6(3)(a), (b), (d), (e), and (f ) of 1984 PA 192, MCL 338.976(3)(a), (b), (d), and (f ).

(b) A holder of a plumbing contractor license issued pursuant to 2002 PA 733, MCL 338.3511 to 338.3569.


80.19.2. Application for permit. Each application for a permit, with the required fee, shall be filed with the code official on a form furnished for that purpose and shall contain a general description of the proposed work and its location. The permit application shall contain all applicable information pursuant to with the act and shall include the signature of the applicant in compliance with section 80.19.1 of the code.

80.19.3. Permit expiration. Each permit issued by the code official under the provisions of the code shall expire by limitation and become null and void if the work authorized by the permit is not begun within 180 days from the date of the permit or if not inspected after the work is begun for a period of 180 days. Before the work may be restarted, the permit shall be reinstated if the code has not changed. If the code has changed and the work was not started, a new permit is required based on the current requirements.

80.19.3.1. Posting of permit. The permit or a copy shall be kept on site of the work until the project is completed.

80.19.4. Uncompleted installation notification. If a person to whom a permit is issued for the installation and inspection of electrical conductors and electrical equipment quits the installation for any reason, then the person shall notify the enforcing agency.

80.19.5. Inspection and refunds for partial installation. If an installation is partially completed, then a permit holder, upon quitting the installation, shall notify the enforcing agency and shall request an inspection. The inspector shall record the acceptance of, or violations against, the work installed on the permit record according to the findings of the inspector. The enforcing agency shall not grant a refund to the permit holder of the permit fee covering electrical equipment installed and inspected.

80.19.6. Owner notification to enforcing agency. If a permit holder quits an installation after the electrical equipment is installed and fails to notify the enforcing agency, then the building owner or his or her agent may notify the enforcing agency and request inspection. Upon inspection, the enforcing agency shall send the permit holder a notice of a violation. The owner may then secure another licensed contractor to proceed with the work if the new contractor is properly covered by a permit.

80.19.7. Transfer of permit. An electrical permit is not transferable.

80.19.8. Fraudulent application for permit. A permit that is issued in violation of the laws of this state or as a result of false or fraudulent information or misinterpretation of conditions is subject to revocation at the direction of the enforcing agency. The enforcing agency shall notify the person holding the permit to appear and show because why the permit should not be revoked. Failure to appear is sufficient grounds for revocation of the permit.

80.19.9. Suspension or revocation of permit. The code official shall have the authority to suspend or revoke a permit issued under the provisions of this code whenever the permit is issued in error or on the basis of incorrect, inaccurate, or incomplete information, or in violation of any ordinance or regulation or any of the provisions of this code.

80.19.10. Annual permit. In place of an individual permit for each alteration to an already approved electrical installation, the enforcing agency may issue an annual permit upon application to any person, firm, or corporation. The applicant shall be licensed pursuant to the electrical administrative act, 1956 PA 217, MCL 338.881 to 338.892.

80.19.11. Annual permit records. The person, firm, and corporation to whom an annual permit is issued shall keep a detailed record of alterations made under an annual permit. Access to the records shall be provided at all times and the records shall be filed with the enforcing agency.

80.19.12. Time limitation of application. An application for a permit for any proposed work shall be deemed to have been abandoned 180 days after the date of filing, unless the application has been pursued in good faith or a permit has been issued; except that the code official may grant 1 or more extensions of time for additional periods not exceeding 90 days each. The extension shall be requested in writing and justifiable cause shall be demonstrated.

80.19.13. Validity of permit. The issuance of a permit or approval of construction documents shall not be construed to be a permit for, or an approval of, any violation of any of the provisions of this code or any other ordinance of the jurisdiction. No permit presuming to give authority to violate or cancel the provisions of this code shall be valid.


The issuance of a permit based upon construction documents and other data shall not prevent the code official from thereafter requiring the correction of errors in the construction documents and other data, or from preventing building operations being carried on thereunder, when in violation of this code or other ordinances of this jurisdiction.R 408 .30818

80.20. Representative on jobsite. The enforcing agency reserves the right to require a representative of the permit holder to be on the job when an inspection is made.

80.20.1. Licensed supervision required. A person who is licensed under 1956 PA 217, MCL 338.881 et seq., and who is employed by and represents the permit holder who is responsible for the electrical installation shall be present at all times when electrical construction is in progress.R 408.30820

80.21. Plans and specifications. An applicant shall submit a detailed set of plans and specifications with the application for an electrical permit for any wiring or alteration to an electrical system if the system requires installation of electrical equipment that has an ampacity of more than 400 amperes for the service or feeder and if the calculated floor area in a building is more than 3,500 square feet. The enforcing agency may request plans for projects that include an unusual design. The electrical drawings shall include all of the following details:

(a) Lighting layout.(b) Circuiting.(c) Switching.(d) Conductor and raceway sizes.(e) Wattage schedule.(f ) Service location and riser diagram.(g) Load calculations and available fault current calculations.(h) A proposed method of construction that is drawn with symbols of a standard form.

All conductors are assumed to be copper unless otherwise stated in the plan. Specifications, when provided, shall also include the information listed in this rule. The selection of suitable disconnect and overcurrent devices to provide proper coordination and interrupting capacity for a wiring system is the responsibility of the designer. The enforcing agency, when approving electrical plans, does not assume responsibility for the design or for any deviations from any electrical drawings. The permit holder shall ensure that the plans and specifications approved by the enforcing agency, or a certified copy of the plans and specifications, where required, are available on the jobsite for the use of the enforcing agency.

80.21.1. Preparation of plans. An architect or engineer shall prepare, or supervise the preparation of, all plans and specifications for new construction work or repair, expansion, addition, or modification work. The architect or engineer shall be licensed under 1980 PA 299, MCL 339.101 to 339.2919. The plans and specifications shall be sealed and signed pursuant to 1980 PA 299, MCL 339.101 to 339.2919.

80.21.2. Application and permits. The code official shall receive applications, review construction documents, and issue permits for the installation and alteration of electrical systems, inspect the premises for which the permits have been issued, and enforce compliance with the code.

The code official may issue a permit for the construction of and part of an electrical system before the entire construction documents for the whole system have been submitted or approved, provided adequate information, and detailed statements have been filed complying with all pertinent requirements of this code. The holders of the permit shall proceed at their own risk without assurance that the permit for the entire electrical system will be granted.

Work shall be installed pursuant to the code and approved construction documents , and any changes made during construction that are not in compliance with the approved construction documents shall be resubmitted for approval as an amended set of construction documents .


80.21.3. Previous approvals. This code shall not require changes in the construction documents, construction or designated occupancy of a structure for which a lawful permit has been previously issued or otherwise lawfully authorized, and the construction of which has been pursued in good faith within 180 days after the effective date of this code and has not been abandoned.

80.21.4. Retention of construction documents. The code official shall retain 1 set of approved construction documents for a period of not less than 180 days from the date of final inspection of the permitted work.R 408 .30819

80.22. Inspection requests. The holder of the permit or his or her duly authorized agent shall notify the code official when work is ready for inspection. The permit holder shall provide access to and means for inspections of work that is required by this code. An enforcing agency shall perform the inspection within a reasonable period of time after the request for inspection is made.

80.22.1. Notices and orders. The code official shall issue all necessary notices or orders to ensure compliance with this code.

80.22.2. Concealing electrical installation. The code official may conduct inspections deemed necessary to determine compliance with the provisions of this code. Construction or work for which a permit is required shall be subject to inspection by the code official, and the construction or work shall remain accessible and exposed for inspection purposes until approved. Approval as a result of an inspection shall not be construed to be an approval of a violation of the provisions of this code or of other ordinances of the jurisdiction. Inspections presuming to give authority to violate or cancel the provisions of this code or of other ordinances of the jurisdiction shall not be valid. Neither the code official nor the jurisdiction shall be liable for expense entailed in the removal or replacement of any material required to allow inspection.R 408.30822

80.23. Violations. If it is found that any electrical equipment does not conform to the provisions of the code, then the enforcing agency shall notify, in writing, the person who installs, or who is responsible for installing, the electrical equipment, in accordance with the act, of the defect, misuse, or violation. Violation penalties shall be as specified in the act and with the electrical administrative act, 1956 PA 217, MCL 338.881 to 338.892. Any portions that do not comply shall be corrected and this portion shall not be covered or concealed until authorized by the enforcing agency.R408.30826

80.24. Fees. The fees prescribed by section 22 of 1972 PA 230, MCL 125.1522, shall be paid to the enforcing agency of the jurisdiction before a permit to begin work for new construction, alteration, removal, demolition, or other building operation may be issued. In addition, an amendment to a permit necessitating an additional fee shall not be approved until the additional fee is paid.R 408 .30824

80.25. Connection to electricity supply. Except where work is performed under an annual permit or except as otherwise provided in the code, a person, firm, or corporation shall not make connection to a supply of electricity or to supply electricity to any electric equipment installation for which a permit is required or that has been disconnected or ordered to be disconnected until authorized by the enforcing agency.R 408 .30823

80.26. Service equipment. The enforcing agency shall approve service equipment installed, altered, or repaired before the load side of the meter is energized.

80.26.1 Emergency Service Repairs. Emergency service repairs. The governing utility shall be permitted to reconnect the electrical service, prior to approval by the enforcing agency, following emergency repairs performed by an electrical contractor licensed pursuant to the electrical administrative act, 1956 PA 217, MCL 338.881 to 338.892. The electrical contractor shall secure a permit within the next business day after the work is completed. This requirement is not applicable to new service connections, upgrades, structural fires, or other planned modifications.


ARTICLE 90 INTRODUCTION

90.3. Code arrangement. The code includes an administration section. Additionally, the code is divided into the introduction and 9 chapters. Chapters 1, 2, 3, and 4 apply generally; chapters 5, 6, and 7 apply to special occupancies, special equipment, or other special conditions. Chapters 5, 6, and 7 supplement or modify the general rules. Chapters 1 to 4 apply except as amended by chapters 5, 6, and 7 for the particular conditions.Chapter 8 covers communications systems and is not subject to the requirements of chapters 1 to 7 except where the requirements are specifically referenced in chapter 8.Chapter 9 consists of tables that are applicable as referenced.Annexes are not part of the requirements of the code but are included for informational purposes only.R 408.30813

90.4. Enforcement. The code is intended to be suitable for mandatory application by governmental bodies that exercise legal jurisdiction over electrical installations, including signaling and communications systems. The enforcing agency shall interpret the rules, decide on the approval of equipment and materials, and grant special permission set forth in the rules.By special permission, the enforcing agency may permit alternative methods where equivalent objectives may be achieved by establishing and maintaining effective safety.

90.6. Formal interpretations. Formal interpretations shall be issued in accordance with 1972 PA 230, MCL 125.1501 et seq.

466. If a house is occupied, the authority having jurisdiction is required to present ________ to the occupant and request entry if they believe there to be a violation.A. A warrantB. A summonsC. CredentialsD. A notice

467. An electrical permit is required to be posted at the _____.A. JobB. OfficeC. Gang BoxD. All listed answers

468. How many times can you transfer an electrical permit?A. OnceB. TwiceC. Never

469. How many times can an electrical permit be extended?A. OnceB. TwiceC. NeverD. Unlimited

470. Each permit issued by the code official under the provisions of the code shall expire by limitation and become null and void if the work authorized by the permit is not begun within ____ days from the date of the permit.A. 60 daysB. 90 daysC. 180 daysD. 365 days

471. Chapter 9 consists of ________.A. Conduit fillB. ConductorsC. TablesD. Calculations

Exam Questions:

Exam Questions:


ARTICLE 100 DEFINITIONS

100. Definitions.

The definitions of authority having jurisdiction, dwelling unit, dwelling, 1-family, dwelling , 2-family, and dwelling, multifamily in article 100 of the code are amended and the definitions of act, chief electrical inspector , code official, electrical inspector , and enforcing agency are added to article 100 of the code to read as follows :

“Act” means 1972 PA 230, MCL 125.1501 to 125.1531 and known as the Stille DeRossett-Hale single state construction code act.

“Authority having jurisdiction” where used in the code means the enforcing agency.

“Dwelling unit” means a single unit providing complete independent living facilities for 1 or more persons, including permanent provisions for living, sleeping, eating, cooking, and sanitation.

“Dwelling, 1-family” means a building that consists solely of 1 dwelling unit complying with the provisions of the Michigan residential code.

“Dwelling, 2-family” means a building that consists solely of 2 dwelling units complying with the provisions of the Michigan residential code.

“Dwelling, multifamily” means a building that contains 3 or more dwelling units. Residential occupancies containing more than 2 dwelling units where the occupants are primarily permanent in nature, including all of the following:

1. Apartment houses.2. Boarding housing, not transient.3. Convents.4. Dormitories.5. Fraternities and sororities.6. Monasteries.

“Chief electrical inspector” where used in the code means the code official.

“Code official” means a person who is appointed and employed by a governmental subdivision who is charged with the administration and enforcement of the state code or codes , and who is registered in accordance with 1986 PA 54, MCL 338.2301 to 338.2313.

“Electrical inspector” where used in the code means the code official.

“Enforcing agency” means the enforcing agency, in accordance with the act, which is responsible for administration and enforcement of the code within a governmental subdivision, except for the purposes of the act.

472. The entity which is responsible for administration and enforcement of the code within a governmental subdivision, except for the purposes of the act would be defined as a ____?A. Enforcing agencyB. Authority having jurisdictionC. ActD. No listed answer

473. ________ means a building that consists solely of 2 dwelling units complying with the provisions of the Michigan residential code.A. Dwelling UnitB. Dwelling, 2-familyC. Dwelling, multifamilyD. None of the above

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ARTICLE 110 REQUIREMENTS FOR ELECTRICAL INSTALLATIONS

110.2. Approval. Materials, equipment, and devices shall be constructed and installed in accordance with approvals granted under section 21 of 1972 PA 230, MCL 125.1521, or by the code official.R 408 .30829

ARTICLE 230 SERVICES

230.40. Number of Service-Entrance Conductor Sets. Each service drop, set of overhead service conductors, set of underground conductors, or service lateral shall supply 1 set of service-entrance conductors.

Exception 1: A building with more than 1 occupancy shall be permitted to have 1 set of service-entrance conductors for each service, as defined in section 230.2 of the code, run to each occupancy or group of occupancies. If the number of service disconnect locations for any given classification of service does not exceed 6, the requirements of 230.2(E) shall apply at each location. If the number of service disconnect locations exceeds 6 for any given supply classification, all service disconnect locations for all supply characteristics, together with any branch circuit or feeder supply sources, if applicable, shall be clearly described using suitable graphics or text, or both, on 1 or more plaques located in an approved, readily accessible location(s) on the building or structure served and as near as practicable to the point(s) of attachment or entry(ies) for each service drop or service lateral, and for each set of overhead or underground service conductors .

Exception 2: Where 2 to 6 service disconnecting means in separate enclosures are grouped at 1 location and supply separate loads from 1 service drop , set of overhead service conductors , set of underground service conductors, or service lateral, 1 set of service-entrance conductors may supply each or several such service equipment enclosures.

Exception 3: A 2-fami ly dwelling or a multifamily dwelling may have 1 set of service entrance conductors installed to supply the circuits covered in section 210.25 of the code.

Exception 4: One set of service-entrance conductors connected to the supply side of the normal service disconnecting means may supply each or several systems covered by section 230.82(4) or section 230.82(5) of the code.R 408 .30835

230.71(A). General. The service disconnecting means for each service permitted by section 230.2 of the code, or for each set of service-entrance conductors permitted by section 230.40, exception nos. 1, 3, or 4, of the code, shall consist of not more than 6 switches or sets of circuit breakers, or a combination of not more than 6 switches and sets of circuit breakers, mounted in a single enclosure, in a group of separate enclosures, in a switchboard or on a switchboard. There shall be not more than 6 sets of disconnects per service grouped in any 1 location.

For the purpose of this section, disconnecting means installed as part of listed equipment and used solely for the following, shall not be considered a service disconnecting means:

(1) Power monitoring equipment.

(2) Surge-protective device or devices.

(3) Control circuit of the ground-fault protection system.

(4) Power-operable service disconnecting means.R 408.30834

ARTICLE 250 GROUNDING

250.104(8) Bonding other metal piping. (1) Bonding other metal piping. If installed in or attached to a building or structure, a metal piping system, including gas piping, capable of becoming energized shall be bonded to the service equipment enclosure, the grounded conductor at the service, the grounding electrode conductor if of sufficient size, or to 1 or more grounding electrodes used.


(2) Other than corrugated stainless steel tubing (csst). The bonding jumper shall be sized in accordance with table 250.122 using the rating of the circuit capable of energizing the piping. The equipment grounding conductor for the circuit that is capable of energizing the piping may serve as the bonding means.

(3) Corrugated stainless steel tubing (csst). Csst gas piping systems shall be bonded by connection to a metallic piping segment or fitting, either outside or inside the building, between the individual gas meter and the first csst fitting. The bonding jumper shall be sized in accordance with Table 250.66 based on the size of the service-entrance conductor or feeder supplying each occupancy and as permitted in Table 250.66, but not smaller than 6 AWG copper (or equivalent).

R 408 .30871

250.118. Types of equipment grounding conductors. The equipment grounding conductor run with or enclosing the circuit conductors shall be 1 or more or a combination of the following:(1) A copper, aluminum, or copper-clad aluminum conductor. This conductor shall be solid or stranded; insulated,

covered, or bare; and, in the form of a wire or a busbar of any shape.(2) Rigid metal conduit.(3) Intermediate metal conduit.(4) Electrical metallic tubing.(5) Flexible metallic tubing where the tubing is terminated in listed fittings and meeting both of the

following conditions:(a) The circuit conductors contained in the tubing are protected by overcurrent devices rated at 20

amperes or less.(b) The length of flexible metallic tubing in the ground return path does not exceed 1.8m (6 feet).

(6) Armor of type AC cable as provided in section 320.108 of the code.(7) The copper sheath of mineral-insulated, metal-sheathed cable.(8) Type MC cable that provides an effective ground-fault current path pursuant to 1 or more of the following:

(a) It contains an insulated or uninsulated equipment grounding conductor in compliance with 250.1 18(1).(b) The combined metallic sheath and uninsulated equipment grounding or bonding conductor of interlocked

metal tape-type MC Cable that is listed and identified as an equipment grounding conductor.(c) The metallic sheath or the combined metallic sheath and equipment grounding conductors of the smooth

or corrugated tube-type MC Cable that is listed and identified as an equipment grounding conductor.(9) Cable trays as permitted by sections 392.3(c) and 392.7 of the code.(10) Cablebus framework as permitted by section 370.3 of the code.(11) Other listed electrically continuous metal raceways and listed auxiliary gutters.(12) Surface metal raceways listed for grounding.R 408.30869

ARTICLE 334 USES PERMITTED

334.10. Uses Permitted. Type NM, type NMC, and type NMS cables may be used in the following:

(1) One- and 2-family dwellings and their attached or detached garages, and their storage buildings.

(2) Multifamily dwellings except as prohibited in section 334.12 of the code.

(3) Other structures except as prohibited in section 334.12 of the code. In structures exceeding 1 floor above grade, cables shall be concealed within walls, floors, or ceilings that provide a thermal barrier of material that has at least a 15- minute finish rating as identified in listings of fire rated assemblies pursuant to the Michigan building code.

(4) Cable trays in structures permitted to be types Ill, IV, or V where the cables are identified for the use.


475. Equipment Bonding jumpers are required to comply with ________ of the code.A. 250.102B. 250.66C. 250.122D. No listed answers

476. Equipment grounding conductors are required to be installed in accordance with section ______of the code.A. 250.102B. 250.134(8)C. 250.122D. 250.66

Exam Questions:

ARTICLE 404 SWITCHES

404.2 (c). Switches controlling lighting loads. Where switches control lighting loads supplied by a grounded general purpose branch circuit, the grounded circuit conductor for the controlled lighting circuit shall be provided at the switch location.

Exception 1: The grounded circuit conductor shall be permitted to be omitted from the switch enclosure where either of the following conditions apply:

(1) Conductors for switches controlling lighting loads enter the box through a raceway. The raceway shall have sufficient cross-sectional area to accommodate the extension of the grounded circuit conductor of the lighting circuit to the switch location whether or not the conductors in the raceway are required to be increased in size to comply with 310.15(8)(3)(a).

(2) Cable assemblies for switches controlling lighting loads enter the box through a framing cavity that is open at the top or bottom on the same floor level, or through a wall , floor, or ceiling that is unfinished on 1 side.

Exception 2: Where lighting loads supplied by a grounded general purpose circuit and controlled by 3-way, or 3-way and 4-way switches, the grounded neutral conductor shall be required to be supplied to only 1 switch location.

474. Nonmetallic cable can be used in ________.A. Single family dwellingsB. 2-family dwellingsC. Cable TrayD. All listed answers

Exam Questions:

ARTICLE 348 FLEXIBLE METAL CONDUIT

348.60. An equipment grounding conductor or equipment bonding jumpers shall be installed. Equipment grounding conductors shall be installed in accordance with section 250.134(8) of the code. Equipment bonding jumpers shall be installed in accordance with section 250.102 of the code.R 408.30867

ARTICLE 350 LIQUIDTIGHT FLEXIBLE METAL CONDUIT

350.60. An equipment grounding conductor or equipment bonding jumpers shall be installed. Equipment grounding conductors shall be installed in accordance with section 250.134(8) of the code. Equipment bonding jumpers shall be installed in accordance with section 250.102 of the code.


477. The ________ conductor is required to be at all single switch locations.A. GroundedB. GroundingC. BondingD. EGC

Exam Questions:

ARTICLE 625 ELECTRIC VEHICLE CHARGING SYSTEM

625.21 Overcurrent protection. Overcurrent protection for feeders supplying electric vehicle supply equipment shall be sized for continuous duty and shall have a rating of not less than 125% of the maximum load of the electric vehicle supply equipment. When noncontinuous loads are supplied from the same feeder, the overcurrent device shall have a rating of not less than the sum of the noncontinuous loads plus 125% of the continuous loads. The branch circuit supplying the electric vehicle equipment shall be an individual branch circuit sized for continuous duty and shall have a rating of not less than 125% of the maximum load of the electric vehicle supply equipment.

480. A legally required standby system is required to be installed pursuant to NFPA ________and NFPA ________.A. 110, 111B. 111, 101C. 110, 112D. 435, 113

Exam Questions:

ARTICLE 700 EMERGENCY SYSTEMS

700.8. Installation. Emergency systems shall be installed pursuant to NFPA 11O and NFPA 111, 2010 editions, which are adopted by reference in these rules.

701.8. Installation. Legally required standby systems shall be installed pursuant to NFPA 110 and NFPA 111, 201O editions, which are adopted by reference in these rules.

478. The overcurrent protection for feeders supplying electric vehicle supply equipment shall be sized for ________.A. Intermittent dutyB. Heavy dutyC. Continuous dutyD. Light duty

479. Overcurrent protection for feeders supplying electric vehicle supply equipment shall be sized for continuous duty and shall have a rating of not less than _____ of the maximum load of the electric vehicle supply equipment.A. 75%B. 100%C. 125%D. 150%

Exam Questions:


Documents

CONTINUING FOR MICHIGAN EDUCATION … · 2011 NEC Code Change Home Study • 15 hours AMERICAN ELECTRICAL INSTITUTE N27 W23953 Paul Road, Suite 203 • Pewaukee, WI 53072