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23,000 students trained since 1980
Electrical maintenance, troubleshooting and safety courses
Safety programs, procedures and arc flash studies
Leadership and Management training
WHAT IS CSA Z463?
Provides guidance on:
The application of safety management systems
1. CSA Z460 Control of Hazardous Energy
2. CSA Z462 Arc Flash Hazard
The selection of reference standards and maintenance procedures
The assessment of electrical equipment to verify correct function
Provide an increased level of safety for electrical workers
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WHY HAS CSA Z463 BEEN CREATED?
To help address the ongoing concerns regarding the impact of maintenance neglect on worker’s safety
To define the difference between maintenance on equipment critical for worker safety versus those critical for production
CSA Z463 will complement CSA Z462 and CSA Z460
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LACK OF MAINTENANCE
Results in: Higher risk to all
workers
Loss of production
High repair costs
Loss of business
Loss of market share
Total loss is possible
WHY IS MAINTENANCE CRITICAL?
Unexpected failure while in service or during operation
Worker safety as protective equipment operating times can increase causing unexpected high arc flash levels
Extreme equipment damage and downtime
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Maintaining speed of protective device operation reduces arc flash hazard levels
Calculated: 5.7 Cal/cm2 Actual: 94.9 Cal/cm2
A safe situation becomes extremely dangerous in a very short period of time.
A difference of milliseconds can be disastrous!
MAINTAINING CALCULATED ARC FLASH HAZARD LEVELS.
Maintenance Statistics
NETA Survey
23% of breakers do not follow their designed operating characteristics
10.5% of circuit breakers do not operate at all
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MOTOR STARTER FAILURE
Failure of the switchgear was caused to a fault in the feeder system. The protective relay system was not operating.
TRANSFORMER WINDING
Multiple turn to turn faults caused by insulation decay due to highly acidic oil.
SWITCHGEAR FIRE
Failure of the switchgear was caused low insulation resistance of the main bus support insulators. The cause was the build up of corona.
SWITCHGEAR EXPLOSION
Result of water leaking in.
CABLE FAILURE
Corona buildup on stress cone terminations
CIRCUIT BREAKER FAILURE
The contacts of this breaker eventually failed as a result of high contact resistance.
The ensuing fire cause severe damage to the switchgear and a power failure to the plant.
CSA Z463 will provide:Guidance and Measurement to
• IndustryGovernment Stakeholders
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MAINTENANCE STRATEGY
System limitations and needs
Life span Mean Time To Failure (MTTF)
Equipment is designed to operate for a defined number of cycles or operations, meaning planned obsolescence
The design life makes periodic maintenance necessary
STRATEGY CONSIDERATION
What are the functions and performance standards of the asset
How does it fail to fulfill the intended function What are the causes of each functional failure What is the effect of each functional failure In what way does each functional failure affect
operability What can be done to predict each failure What are the alternatives if suitable
maintenance can not be performed
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REFERENCED MAINTENANCE PROGRAMS
Reactive/Corrective/Breakdown/RTF Preventive: Time Based Predictive: Condition Based Reliability Centered: Function Based Risk Based
Laws
Standards & Guidelines
Company Internal Responsibilities
Hazard Identification & Control
Tasks at hand Isolation lock out & Verification
THE SAFETY PYRAMID
Licensed Electrician
Supervised Apprentice
Supplier Certified Technicians
Electrical Safety Training on Series Air Field Circuits (40
Hours)Airfield Lighting Operation and
Maintenance
Airfield Lighting Regulator Course
Arc Flash Safety Training
Lock Out Tag Out Training
WORKER QUALIFICATIONS
Safe Work Environment
Schedule with Air Operations
Do Not Work on Live Equipment Alone
Follow LOTO Procedures
Proper Clear Communications
Breaking Series Circuits
Handling Energized Conductors and Components
Re-Lamping While Power Is On
SAFETY CONSIDERATIONS
Operating Conditions
Age and General Condition
Environmental Conditions
Importance to the System
MAINTENANCE CONSIDERATIONS
AIRFIELD LIGHTING
CSA Z463
Section9.18
Annex N
SERIES & PARALLEL CONDUCTORS
Insulation resistance test @ 5000 Vdc
Tests Results:
Circuit Length (m) Recommended Minimum Insulation Resistance Mohms
<3300m 50
3330-6660m 40
>6600m 30
EDGE LIGHTS
Daily-Check for lights out Monthly-Check alignment Semi Annual- check elevation ,
moisture penetration, gaskets and seals, corrosion and peeling paint
Annual- check for cracking of fixture, corrosion and shorts
CSA Z463 section 9.18.5.3 covers specific maintenance procedures for
a) Lamp replacement
b) Spare unit replacement
c) Cleaning
d) Cleaning Schedule
e) Moisture
f) Strikes and blast damage
g) Frangible couplings
h) Scheduled painting
APPROACH LIGHTS
Daily- Intensity, burned out lamps and alignment
Monthly- Alignment Semi-annual- check
alignment, terminal blocks and relays
CSA Z463 section 9.18.6.3 covers specific maintenance procedures for
a) Steady burning fixtures
b) Flashing Fixtures
c) Towers and poles
INSET LIGHTS
Weekly- Replace defective lights
Monthly- Cleaning and intensity
Semi-monthly- check torque of mounting bolts
Semi-annual- Full cleaning and service
CSA Z463 section 9.18.7.3 covers specific maintenance procedures for
a) Light removal
b) Cleaning
c) Film disc cut-outs
d) Light aiming
e) Light cleaning and sealing
f) Reinstallation
g) Water Removal
PAPI
Daily- Replace burned out or darkened bulbs
Monthly- Test controls, clean lamps/filters, visual inspection for defects, alignment, evidence of rodents
CSA Z463 section 9.18.8.3 covers specific maintenance procedures for
a) Aiming
REGULATORS
Semi-annual- Inspect all power and control connections
Visual inspection Clean as required Verify all seals
and gaskets Annual- Verify all
seals and gaskets CSA Z463 Table
M17 covers specific maintenance procedures
OTHER SYSTEMS
Wind Direction 9.18.13
Approach Lights 9.18.9 Guidance Signs 9.18.10Beacons 9.18.12
Guard Lights 9.18.14 Obstruction Lights 9.18.11
REFERENCE TABLES
CSA Z463 Section Reference Topic
Table N1 Insulation Resistance
Table N2 Test Voltage
Table N3 Runway, Taxiway, Inset Light
Table N4 Approach Lights
Table N5 Aerodrome Beacons
Table N6 PAPI systems
Table N7 Approach Lights
Table N8 Inspection & Maintenance Schedule
Table M17 Regulating Equipment
