R15' ./9-/Staff Exhibit 2

U.S. NUCLEAR REGULATORY COMMISSION

Doc~go.$C,~g -~-O ficaxhbit ND. j5OO by: APPlicant/Licensee Intervenor

N Other ------

DOCKETEDUSNRC

October 1, 2007 (10:45am)

OFFICE OF SECRETARYRULEMAKINGS AND

ADJUDICATIONS STAFF

Subsection IWE Excerpts

"Te pl•ale=5 ecy- 0.P7sec Y-09z

SUBSECTION IWEREQUIREMENTS FOR CLASS MC

AND METALLIC LINERS OF CLASS CCCOMPONENTS OF LIGHT-WATER

COOLED PLANTS

IWE-1000IWE-I 100IWE- 1200

IWE-1210

IWE-1 220IWE-1230IWE-1231IWE- 1232IWE- 1240fWE-1241IWE-1242

IWE-2U00IWE-2200IWE-2400

IWE-2410IWE-2411IWE-2412!WE-2420[WE-2430

IWE-2500I'WE-2600

[WE-3000

IWE-3100IWE-31 10IWE-31 IIIWE-3112IWE-3114IWE-3115IWE-3120IWE-3121IWE-3122IWE-3122.1

Scope and Responsibility .................................................S cope .. .... . .. . ... ...... ... . .. ......... .... .. .. ... . . . ............... ...Components Subject to Examination ........................................Exam ination Requirements ................................................Components Exempted From Examination ...................................Accessibility for Exam ination ..............................................Accessible Surface Areas .................................................Inaccessible Surface Areas .................................................Surface Areas Requiring Augmented Examination .............................Exam ination Surface Areas .................... ...........................Identification of Examination Surface Areas ..................................

Exam ination and Inspection ..............................................Preservice Exam ination ...................................................Inspection Schedule ......................................................Inspection Program .......................................................Inspection Program A ....................................................Inspection Program B...............................................Successive Inspections ....................................................A dditional Exam inations ..................................................Examination and Pressure Test Requirements .................................Condition of Surface to Be Examined .......................................

Acceptance Standards ...................................................Evaluation of Nondestructive Examination Results ............................Preservice Exam inations ..................................................G eneral .. .. . ... .... .. .. . ..... ..... .. .. ... ... . ..... . .. ........... . . .....A cceptance ......................................... ....................Repairs and Reexam inations ...............................................R eview by A uthorities ....................................................Inservice Nondestructive Examinations ......................................G eneral ... .. .... . .. .. .... .... .. ... .. .. ... ... ... ... . .. .. ..... ..... . .....A cceptance .. ... ...... ....................... ...... .....................Acceptance by Exam ination ...............................................

215215215215215215215215216216216

217217217217217218218218.218219

228228228228228228228228228228228

21!

IWE- 3122.21WE-3122.3

IWE-3122.4IWE-3124IWE-3125IWE-3130

IWE-3200IWE-3400

IWE-3410IWE-3430

IWE-3500

IWE-35 10IWE-3510.1IWE-3510.2IWE-3510.3IWE-351 IIWE-35 11.1IWE-3511.2IWE-3512

IWE-3512. IIWE-3512.2IWE-3512.3IWE-3513

IWE-3513.1IWE-3514

IWE-3514. !IWE-3515IWE-3515. IIWE-3515.2

IWE-4000IWE-4100

IWE.5000IWE-5200

IWE-5210IWE-5220IWE-5221IWE-5222IWE-5240IWE-5250

IWE-7000IWE-7100

A cceptance by Repair ....................................................Acceptance by Replacem ent ...............................................A cceptance by Evaluation .................................................Repairs and Reexam inations ...............................................R eview by A uthorities ....................................................Inservice Visual Examinations.........................................Supplemental Examinations ...........................................Standards ....... . ........ ...............................................A cceptance Standards .....................................................A cceptability .... . ........ ................................... ............Acceptance Standards .....................................................

Standards for Examination Category E-A, Containment Surfaces ................Visual Exam inations - General ............................................VT-3 Visual Examinations on Coated Areas .................................VT-3 Visual Examinations on Noncoated Areas ..............................Standards for Examination Category E-B, Pressure-Retaining Welds .............VT-I Visual Examinations on Coated Areas .................................VT-i Visual Examinations on Noncoated Areas ..............................Standards for Examination Category E-C, Containment Surfaces Requiring

A ugmented Exam inations ...............................................VT-I Visual Examinations on Coated Areas .................................VT-I Visual Examinations on Noncoated Areas ..............................U ltrasonic Exam ination ...................................................Standards for Examination Category E-D, Seals, Gaskets, and Moisture

B arriers ..............................................................VT-3 Visual Exam inations ................................................Standards for Examination Category E-F; Pressure Retaining Dissimilar

.M etal W elds ..........................................................Surface Exam inations ......................................... .... ......Standards for Examination Category E-G, Pressure Retaining Bolting ............Visual Exam inations ......................................................Bolt Torque or Bolt Tension ..............................................

R epair Procedures ......................................................S co pe ...........................................................

System Pressure Tests ...................................................System Test Requirem ents ................................................G eneral ..... ............................... ................... .........Tests Following Repair, Modification, or Replacement .........................L eakage T est ............................................................Deferral of Leakage Tests ............................................V isual Exam ination ......................................................C orrective M easures ...... . . . ................... .......................

228

229229229229

229229229229229229229229230230230230230

230230231231

231231

231

231

231231

232232

233233233233233233233233

R eplacem ents ........................................................... 234G eneral Requirem ents .................................................... 234

212

Figures[W E-2500-1 Dissimilar M etal W elds .................................................. 219

IW E-2500-2 Examination Areas for Moisture Barriers .................................... 220

TablesIW E-241 I-I Inspection Program A .................................................... 218

IW E-2412-1 Inspection Program B ............................................. ; ...... 218IW E-2500-1 Exam ination Categories ................................................... 221

IW E-3410-1 Acceptance Standards ..................................................... 230

213

ARTICLE IWE-1000SCOPE AND RESPONSIBILITY

IWE-1100 SCOPE

This Subsection provides the rules and requirementsfor inservice inspection, repair, and replacement ofClass MC pressure retaining components and their in-tegral attachments, and of metallic shell and penetrationliners of Class CC pressure retaining components andtheir integral attachments in light-water cooled plants.

IWE-1200 COMPONENTS SUBJECT TOEXAMINATION

INWE-1210 EXAMINATION REQUIREMENTS

The examination requirements of this Subsectionshall apply to Class MC pressure retaining componentsand their integral attachments and to metallic shell andpenetration liners of Class CC pressure retaining com-ponents and their integral attachments. These exami-nations shall apply to surface areas, including weldsand base metal.

IWE-1220 COMPONENTS EXEMPTED FROMEXAMINATION

The following components (or parts of components)are exempted from the examination requirements ofIWE-2000:

(a) vessels, parts, and appurtenances that are outsidethe boundaries of the containment as defined in theDesign Specifications;

(b) embedded or inaccessible portions of contain-ment vessels, parts, and appurtenances that met the re-quirements of the original Construction Code;

(c) portions of containment vessels, parts, and ap-purtenances that become embedded or inaccessible asa result of vessel repair or replacement if the conditionsof IWE-1232 and IWE-5220 are met;

(d) piping, pumps, and valves that are part of thecontainment system, or which penetrate or are attached

to the containment vessel. These components shall beexamined in accordance with the rules of IWB or IWC,as appropriate to the classification defined by the De-sign Specifications.

IWE-1230 ACCESSIBILITY FOREXAMINATION

IWE-1231 Accessible Surface Areas

(a) As a minimum, the following portions of ClassMC containment vessels, parts, and appurtenances andClass CC metallic shell and penetration liners shall re-main accessible for either direct or remote visual ex-amination, from at least one side of the vessel, for thelife of the plant:

(1) openings and penetrations;(2) structural discontinuities;(3) single-welded butt joints from the weld side;(4) 80% of the surface area defined in Table [WE-

2500-1, Examination Category E-A; and(5) surface areas identified in IWE-1240.

(b) The requirements of IWE-1232 shall be metwhen accessibility for visual examination is not fromthe outside surface.

IWE-1232 Inaccessible Surface Areas

(a) Portions of Class MC containment vessels, parts,and appurtenances that are embedded in concrete orotherwise made inaccessible during construction of thevessel or as a result of vessel repair, modification, orreplacement are exempted from examination, provided:

(1) no openings or penetrations are embedded inthe concrete;

(2) all welded joints that are inaccessible for ex-amination are double buttwelded and are fully radio-graphed and, prior to being covered, are tested for leaktightness using a gas medium test, such as Halide LeakDetector Test;

215

[WE-1232 1992 SECTION XI - DIVISION I IWE- 1242

(3) all weld joints that are not double butt weldedremain accessible for examination from the weld side;and

(4) the vessel is.leak rate tested after completionof construction, repair, or replacement to the leak raterequirements of the Design Specifications.

(b) Portions of Class CC metallic shell and penetra-tion liners that are embedded in concrete or otherwisemade inaccessible during construction or as a result ofrepair or replacement are exempted from examination,provided:

(1) all welded joints that are inaccessible for ex-amination are examined in accordance with CC-5520and, prior to being covered or otherwise obstructed byadjacent structures, components, parts, or appurte-nances, are tested for leak tightness in accordance withCC-5536; and

(2) the containment is leak rate tested after com-pletion of construction, repair, or replacement to theleak rate requirements of the Design Specifications.

IWE-1240 SURFACE AREAS REQUIRINGAUGMENTED EXAMINATION

IWE-1241 Examination Surface Areas

Surface areas likely to experience accelerated deg-radation and aging require the augmented examinationsidentified in Table IWE-2500-1, Examination CategoryE-C. Such areas include the following:

(a) interior and exterior containment surface areasthat are subject to accelerated corrosion with no or min-inal corrosion allowance or areas where the absenceor repeated loss of protective coatings has resulted insubstantial corrosion and pitting. Typical locations ufsuch areas are those exposed to standing water, re-peated wetting and drying, persistent leakage, andthose with geometries that permit water accumulation,condensation, and microbiological attack. Such areasmay include penetration sleeves, surfaces wetted duringrefueling, concrete-to-steel shell or liner interfaces,embedment zones, leak chase channels, drain areas, orsump liners.

(b) interior and exterior containment surface areasthat are subject to excessive wear from abrasion or ero-sion that causes a loss of protective coatings, defor-mation, or material loss. Typical locations of suchareas are those subject to substantial traffic, slidingpads or supports, pins or clevises, shear lugs, seismicrestraints, surfaces exposed to water jets from testingoperations or safety relief valve discharges, and areasthat experience wear from frequent vibrations.

IWE-1242 Identification of Examination SurfaceAreas

Surface areas requiring augmented examination shallbe determined in accordance with IWE-1241, and shallbe identified in the Owner's Inspection Program.

Examination methods shall be in accordance withIWE-2500(c).

216

ARTICLE IWE-2000EXAMINATION AND INSPECTION

IWE-2200 PRESERVICE EXAMINATION

(a) Examinations listed in Table IWE-2500-1 shallbe completed prior to initial plant startup. These pre-service examinations shall include the pressure retain-ing portions of components not exempted by IWE-1220.

(b) When visual examinations are required, these ex-aminations shall be performed in accordance with IWE-2600, following the completion of the pressure test re-quired by the Construction Code and after applicationof protective coatings (e.g., paint) when such coatingsare required.

(c) When surface examinations are required by Ta-ble IWE-2500-1, shop or field examinations in accor-dance with NE-5000 for Class MC or CC-5500 forClass CC may serve in lieu of the on-site preserviceexaminations, provided:

(1) the examinations are conducted by the samemethod with equipment and techniques equivalent tothose that are expected to be employed for subsequentinservice examinations;

(2) the shop or field examination records are, orcan be, documented and identified in a form consistentwith those required in IWA-6000; and

(3) the examinations are performed after the pres-sure test required by the Construction Code has beencompleted.

(d) When a vessel, liner, or a portion thereof is re-paired or replaced during the service lifetime of a plant,the preservice examination requirements for the vesselrepair or replacement shall be met.

(1) When the repair or replacement is performedwhile the plant is not in service, the preservice ex-amination shall be performed prior to the resumptionof service.

(2) When the repair or replacement is performedwhile the plant is in service, the preservice examinationmay be deferred to the next scheduled plant outage,provided nondestructive examination in accordancewith the approved repair program is performed.

(3) When a system leakage test is required byIWE-5220, the preservice examination may be per-formed either prior to or following the test.

(e) Welds made as part of a repair or a replacementprogram shall be examined in accordance with the re-quirements of IWA-4000, except that for welds joiningClass MC or Class CC components to items designed,constructed, and installed to the requirements of Sec-tion III, Class 1, 2, or 3, the examination requirementsof IWB-2000, IWC-2000, or IWD-2000, as applicable,shall apply.

(f) Preservice examination for a repair or replace-ment may be conducted prior to installation provided:

(I) the examination is performed after the pressuretest required by the Construction Code has been com-pleted;

(2) the examination is conducted under conditionsand with equipment and techniques equivalent to thosethat are expected to be employed for subsequent in-service examinations; and

(3) the shop or field examination records are, orcan be, documented and identified in a form consistentwith that required by IWA-6000.

(g) When paint or coatings are reapplied, the con-dition of the new paint or coating shall be documentedin the preservice examination records.

IWE-2400 INSPECTION SCHEDULE

IWE-2410 INSPECTION PROGRAM

Inservice examinations and system pressure testsmay be performed during plant. outages such as re-fueling shutdowns or maintenance shutdowns. The re-quirements of either Inspection Program A or Inspec-tion Program B shall be met.

IWNIE-2411 Inspection Program A

(a) With the exception of the examinations that maybe deferred until the end of an inspection interval, as

217

IIVE-2411 1992 SECTION XI - DIVISION I IWE-2500

TABLE IWE-2411-1INSPECTION PROGRAM A

Inspection Period, Minimum MaximumInspection Calendar Years of Examinations ExaminationsInterval Plant Service Completed, % Credited, %

1st 3 100 100

2nd 7 33 b710 100 100

3rd 13 16 3417 40 5020 66 7523 100 100

4th 27 8 1630 25 3433 50 6737 75 10040 100 . . .

specified in Table IWE-2500-l,. the required exami-nations shall be completed during each successive in-spection interval, in accordance with Table IWE-241 I -1.Following completion of Program A after 40 years,successive inspection intervals shall follow the 10 yearinspection interval of Program B.

(b) The inspection period specified in IWE-241 1(a)may be decreased or extended by as much as 1 yearto enable an inspection to coincide with a plant outage,within the limitations of 1"WA-2430(c).

IWE-2412 Inspection Program B

(a) With the exception of the examinations that maybe deferred until the end of an inspection interval, asspecified in Table IWE-2500-1, the required exami-nations shall be completed during each successive in-spection interval, in accordance with Table IWE-2412-1.

(b) The inspection period specified in IWE-2412(a)may be decreased or extended by as much as I yearto enable an inspection to coincide with a plant outage,within the limitations of IWA-2430(d).

IWE-2420 SUCCESSIVE INSPECTIONS

(a) The sequence of component examinations estab-lished during the first inspection interval shall be re-peated during each successive inspection interval, tothe extent practical.

(b) When component examination results requireevaluation of flaws, areas of degradation, or repairs in

TABLE IWE-2412-1INSPECTION PROGRAM B

Inspection Period,Calendar Years of Minimum Maximum

Inspection Plant Service, Examinations ExaminationsInterval Within the Interval Completed, % Credited, %

1st 3 16 347 50 67

10 100 100

Successive 3 16 347 50 67

10 100 100

accordance with IWE-3000, and the component isfound to be acceptable for continued service, the areascontaining such flaws, degradation, or repairs shall bereexamined during the next inspection period listed inthe schedule of the inspection program of IWE-2411or 1WE-2412, in accordance with Table IWE-2500-I,Examination Category E-C.

(c) When the reexaminations required by IWE-2420(b) reveal that the flaws, areas of degradation, orrepairs remain essentially unchanged for three consec-utive inspection periods, the areas containing suchflaws, degradation, or repairs no longer require aug-mented examination in accordance with Table IWE-2500-1. Examination Category E-C.

IWE-2430 ADDITIONAL EXAMINATIONS

(a) Examinations performed during any one inspec-tion that reveal flaws or areas of degradation exceedingthe acceptance standards of Table IWE-3410-1 shall beextended to include an additional number of exami-nations within the same category approximately equalto the initial number of examinations during the in-spection.

(b) When additional flaws or areas of degradationthat exceed the acceptance standards of Table IWE-34.10-1 are revealed, all of the remaining examinationswithin the same category shall be performed to the ex-tent specified in Table ]WE-2500-1 for the inspectioninterval.

IWE-2500 EXAMINATION AND PRESSURETEST REQUIREMENTS

(a) The method of examination for the components,parts, and items (e.g., seals, gaskets, and bolts) of thepressure retaining boundaries shall comply with those

218

lVE-2500 REQUIREMENTS FOR CLASS MC COMPONENTS IWE-260O

Examinalion SurlaceA-B

1,12in. 1,/2 in.

A B

C D

Examination Surtace

C-D

(1) Surface areas accessible from both sides shallbe visually examined using a VT-I visual examihationmethod.

(2) Surface areas accessible from one side onlyshall be examined for wall ihinnitip using an ultrasonicthickness measurement method in accordance with Sec-tion V, T-544.

(3) When ultrasonic thickness measurements areperformed, one foot square grids shall be used. Thenumber and location of the grids shall be determinedby the Owner.

(4) Ultrasonic measurements shall be used to de-termine the minimum wall thickness within each grid.The location of the minimum wall thickness shall bemarked such that periodic reexamination of that loca-tion can be performed in accordance with the require-ments of Table IWE-2500-1, Examination CategoryE-C.

IWE-2600 CONDITION OF SURFACE TOBE EXAMINED

(a) When a containment vessel or liner is painted orcoated to protect surfaces from corrosion. preserviceand inservice visual examinations shall be performedwithout the removal of the paint or coating.

(b) When removal of paint or coating is required, itshall be removed in a manner that will not reduce thebase metal or weld thickness below the design thick-ness. Reapplied paint and coating systems shall becompatible with the existing system, and shall be ex-amined in accordance with IWE-2200(g).

Surface Areas A - B and C - D

FIG. iWE-2500-1 DISSIMILAR METAL WELDS

tabulated in Table IWE-2500-1I, except where alternateexamination methods are used that meet the require-ments of IWA-2240.

(b) When paint or coatings are to be removed, thepaint or coatings shall be visually examined in accor-dance with Table IWE-2500-1 prior to removal.

(c) Examination methods for surface areas for aug-mented examination in IWE-1242 shall comply withthe following criteria.

219

Fig. IWE-2500-2 1992 SECTION XI - DIVISION I

Examination area A-B *Pressure retaining metalcontainment shell or liner

External concrete-to-metalinterface moisture barrier

Examination area C-D

Interal concrete-to-metal

interface moisture barrier

Embedded shell or liner

FIG. IWE-2500-2 EXAMINATION AREAS FOR MOISTURE BARRIERS

220

I'-)

TABLE IWE-2500-1 (CONT'D)EXAMINATION CATEGORIES

EXAMINATION CATEGORY E-A, CONTAINMENT SURFACES

Extent and Frequency of Examination

Examlination' 1st Deferral ofItem Parts Requirements/ Examination Acceptance Inspection Successive Inspection toNo. Examined Fig. No. Method Standard Interval Inspection Intervals End of Interval9

E1.10 Containment VesselPressure Retaining Boundary

E.l1l Accessible Surface Areas 2.3.5 IWE-3510.1 General Visual 7 IWE-3510.1 100% 100% Not permissiblePrior to each Prior to each

Type A tests Type A tests

EI,12 Accessible Surface Areas 2 .4 .1 ]WE-3510.2 Visual, VT-3 IWE-3510.2 100% 100% N/A]WE-3510.3 IWE-3510.3 End. of interval End of interval

E1.20 Vent System IWE-3510.2 Visual, VT-3 IWE-3510.2 100% 100% N!AAccessible Surface Areas 2-4 s.6' IWE-3510.3 ]WE-3510.3 End of interval End of interval

NOTES:(1) Examination may be made from either the inside or outside surface.(2) Examination shall include structures that are parts of reinforcing structure, such as stiffening rings, manhole frames, and reinforcement

around openings.(3) Not including surface areas that are submerged or Insulated.(4) Including the wetted surfaces of submerged areas and the portions of insulated surface areas that are necessary to meet the requirements

of iWE-1231(a)(4).(5) Examination shall include the attachment welds between structural attachments and the pressure retaining boundary or reinforcing

structure, except for nonstructural and temporary attachments as defined in NE-4435 and minor permanent attachments as defined inCC-4543.4. Examination shall include the weld metal and the base metal for '/, In. beyond the edge of the weld.

(6) includes flow channeling devices within containment vessels.(7) Refer to IWE-3510.1 for General Visual examination method requirements.(8) Refer to IWE-5220 for test requirements.(9) Deferral of inspection is not permissible In the 4th and successive inspection intervals.

17-)

Ell,

TABLE IWE-2500-1 (CONT'D)EXAMINATION CATEGORIES

14)

EXAMINATION CATEGORY E-B, PRESSURE RETAINING WELDS

Extent and Frequency of Examination

Examination 1st Deferral ofItem Parts Requirements/ Examination Acceptance Inspection Successive Inspection to

No. Examined Fig. No. Method Standard Interval Inspection Intervals4 End of Interval 7

E3.10 Containment Penetration Welds',5 Visual, VT-1 IWE-3511 25% of the total 25% of the total Permissiblenumber of welds'.' number of welds'.2

E3.11 Longitudinal

E3.12 CircumferentialE3.13 Flued Head and Bellows Seal

Circumferential Welds Joined

to the Penetration

E3.20 Flange Welds (Category C)0 Visual, VT-1 |WE-3511 25% of the total 25% of the total Permissible

number of weldsl,2 number of welds'-2

E3.30 Noule-to-Shell Welds (Category D)6 Visual, VT-1 IWE-3511 25% of the total 25% of the total Permissible

number of welds1 .' number of welds'2.

NOTES:(1) Examination shall include the weld metal and the base metal for % In. beyond the edge of the weld.

(2) Welds shall be randomly selected throughout the containment and representative of the type of welds described by each Item number.

(3) Examination shall Include welds made In accordance with Section III, Class MC, Including those Class MC welds shown in Figs. NE-1120-1

and NE-1132-1.(4) Different welds shall be selected for examination each Inspection Interval.(5) Includes only those welds subject to cyclic loads and thermal stress during normal plant operation.

(6) Welded joint categories are as defined In NE-3351 for Class MC and.CC-3840 for Class CC.(7) Deferral of inspection is not permissible in the 4th and successive Inspection intervals.

'0

IJf-J

TABLE IWE-2500-1 (CONT'D)EXAMINATION CATEGORIES

EXAMINATION CATEGORY E-C, CONTAINMENT SURFACES REQUIRING AUGMENTED EXAMINATION

Extent and Frequency of Examination

Examination 1st Deferral ofItem Parts Requirements/ Examination Acceptance Inspection Successive Inspection toNo. Examined Fig. No. Method Standard Interval Inspection Intervals End of Interval 3

E.4.10 Containment Surface Areas

E4.11 Visible Surfaces Visual, VT-1 IWE-3512.1 100% of Surface 100% of Surface Not PermissibleIWE-3512.2 Areas Identified Areas Identified

by IWE-12421 by IWE-12422 m

E4.12 Surface Area Grid, Volumetric IWE-3512.3 100% of Minimum 100% of Minimum Not Permissible ZMrMinimum Wall Thickness Location Wall Thickness Wall Thickness

Locations during Locations duringeach Inspection each Inspection -IPeriod, established Period, established

in accordance in accordance 0with withIWE-2500(c)(3) 2 IWE-2500(c)(3)2 r)

and andiWE-2500(c)(4)

2 IWE-2500(c)(4) 2

0

z(-I

NOTES:(1) Containment surface areas requiring augmented examination are those identified In IWE-1240.(2) The extent of examination shall be 100% for each Inspection period until the areas examined remain essentially unchanged for three

consecutive inspection periods. Such areas no longer require augmented examination In accordance with IWE-2420(c).(3) Deferral of inspection Is not permissible In the 4th and successive Inspection Intervals.

I..)

TABLE IWE-2500-1 (CONT'D)EXAMINATION CATEGORIES

EXAMINATION CATEGORY E-D, SEALS, GASKETS, AND MOISTURE BARRIERS

Extent and Frequency'of Examination

Examination 1st Deferral ofItem Parts Requirements/ Examination Acceptance Inspection Successive Inspection toNo. Examined' Fig. No. Method Standard Interval Inspection Intervals End of Interval 5

E5.10 Seals' Visual, VT-3 IWE-3513 100% of each item 100% of each item Not permissible

E5.20 Gaskets' Visual,. VT-3 IWE-3513 100% of each item 100% of each item Not permissible

E5.30 Moisture Barriers 2.3.' IWE-2500-2 Visual, VT-3 IWE-3513 100% of each item 100% of each item Not permissible

NOTE:(1) Examination shall include seals and gaskets on airlocks, hatches, and other devices that are required to assure containment leak-tight

Integrity.(Z) Examination shall include internal and external containment moisture barrier materials at concrete-to-metal interfaces intended to prevent

intrusion of moisture against the pressure retaining metal containment shell or liner.(3) Containment moisture barrier materials include caulking, flashing, and other sealants used for this application.(4) Examination shall include all accessible surfaces of internal and external containment moisture barriers.(5) Deferral of Inspection is not permissible In the 4th and successive inspection Intervals.

V.-,

ARTICLE IWE-3000

ACCEPTANCE STANDARDS

IWE-3100 EVALUATION OFNONDESTRUCTIVEEXAMINATION RESULTS

IWE-3110 PRESERVICE EXAMINATIONS

IWE-3111 General

The preservice examination required by IWE-2200and performed in accordance with the procedures ofIWA-2200 shall be evaluated by the acceptance stan-dards specified in Table IWE-3410-1. Acceptance ofcomponents for service shall be in accordance withIWE-3112, IWE-3114, and [WE-3115.

IWE-3112 Acceptance

(a) Components whose examination either confirmsthe absence of or reveals flaws or areas of degradationthat do not exceed the acceptance standards of TableIWE-3410-1 shall be acceptable for service, providedthe flaws or areas of degradation are recorded in ac-cordance with the requirements of IWA-1400(h) andIWA-6220 in terms of location, size, shape, orienta-tion, and distribution within the component.

(b) Components whose examination reveals flaws orareas of degradation that do not meet the acceptancestandards of Table IWE-3410-1 shall be unacceptablefor service unless such flaws or areas of degradationare removed or repaired, to the extent necessary tomeet the acceptance standards, prior to placement ofthe component in service.

IWE-3114 Repairs and Reexaminations

Repairs and reexaminations shall comply with therequirements of IWA-4000. Reexamination shall beconducted in accordance with the requirements ofIWA-2200; the recorded results shall demonstrate thatthe repair meets the acceptance standards specified inTable IWE-3410-1.

IWE-3115 Review by Authorities

(a) The repair program and the examination resultsshall be subject to review by the enforcement author-ities having jurisdiction at the plant site.

(b) Evaluation of examination results may be subjectto review by the regulatory authority having jurisdictionat the plant site.

IWE-3120 INSERVICE NONDESTRUCTIVE

EXAMINATIONS

IWE-3121 General

Inservice nondestructive examination results shall becompared with recorded results of the preservice ex-amination and prior inservice examinations. Accep-

tance of the components for continued service shall bein accordance with IWE-3122, IWE-3124, and IWE-3125.

IWE-3122 Acceptance

IWE-3122.1 Acceptance by Examination. Com-ponents whose examination results meet the acceptancestandards listed in Table IWE-2500-1 shall be accept-able for continued service. Verified changes of flawsor areas of degradation from prior examinations shallbe recorded in accordance with IWA-1400(h) andIWA-6220. Components that do not meet the accep-tance standards of IWE-3000 shall be corrected in ac-cordance with the provisions shown in IWE-3122.2,IWE-3122.3, or IWE-3122.4.

IWE-3122.2 Acceptance by Repair. Componentswhose examination results reveal flaws or areas of deg-radation that do not meet the acceptance standards list-ed in Table IWE-2500-1 shall be unacceptable for con-tinued service until the additional examinationrequirements of IWE-2430 are satisfied, and the flawor area of degradation is either removed by mechanical

228

!WE-3122.2 REQUIREMENTS F-O CLASS MC COMPONENTS IWE-3510.1

methods or the component repaired to the extent nec-essary to meet the acceptance standards of IWE-3000.

IWE-3122.3 Acceptance by Replaicement. As analternative to the repair requirement of IWE-3122.2.the component or the portion of the component con-taining the flaw or area of degradation shall be replacedin accordance with IWE-7000.

IWE-3122.4 Acceptance by Evaluation(a) Components whose examination results reveal

flaws or areas of degradation that do not meet the ac-ceptance standards listed in Table IWE-3410-1 shall beacceptable for service without the removal or repair ofthe flaw or area of degradation or replacement if anengineering evaluation indicates that the flaw or areaof degradation is nonstructural in nature or has no ef-fect on the structural integrity of the containment.When supplemental examinations of IWE-3200 are re-quired, if either the thickness of the base metal is re-duced by no more than 10% of the nominal plate thick-ness or the reduced thickness can be shown by analysisto satisfy the requirements of the Design Specifications,the component shall be acceptable by evaluation.

(b) When flaws or areas of degradation are acceptedby engineering evaluation, the area containing the flawor degradation shall be reexamined in accordance withIWE-2420(b) and (c).

(c) When portions of later editions of the Construc-tion Code or Section III are used, all related portionsshall be met. The engineering evaluation shall be sub-ject to review by the enforcement and regulatory au-thorities having jurisdiction at the plant site.

IWE-3124 Repairs and Reexaminations

Repairs and reexaminations shall comply with therequirements of IWA-4000. Reexaminations shall beconducted in accordance with the requirements ofIWA-2200 and the recorded results shall demonstratethat the repair meets the acceptance standards of TableIWE-3410- -.

IWE-3125 Review by Authorities

The repair program and the reexamination resultsshall be subject to review by the enforcement author-ities having jurisdiction at the plant site.

IWE-3130 INSERVICE VISUALEXAMINATIONS'

Components, whose visual examination as specifiedin Table IWE-2500-1 reveals areas that are suspect,shall be unacceptable for continued service unless, fol-

lowing verification of the suspect areas by the supple-mental examination as required by IWE-3200, the re-quirements of IWE-3120 are satisfied.

IWE-3200 SUPPLEMENTALEXAMINATIONS

Examinations that detect flaws or evidence of deg-radation that require evaluation in accordance with therequirements of IWE-3100 may be supplemented byother examination methods and techniques (IWA-2240)to determine the character of the flaw (i.e., size, shape,and orientation) or degradation. Visual examinationsthat detect surface flaws or areas that are suspect shallbe supplemented by either surface' or volumetric ex-amination.

IWE-3400 STANDARDS

IWE-3410 ACCEPTANCE STANDARDS

The acceptance standards of Table IWE-3410-1 shallbe applied to evaluate the acceptability of the com-ponent for service following the preservice examinationand each inservice examination.

IWE-3430 ACCEPTABILITY

Flaws or areas of degradation that do not exceed theallowable acceptance standards of IWE-3500 for therespective examination category shall be acceptable.

IWE-3500 ACCEPTANCE STANDARDS

IWE-3510 STANDARDS FOR EXAMINATIONCATEGORY E-A, CONTAINMENTSURFACES

IWE-3510.1 Visual Examinations-- General(a) The General Visual Examination shall be per-

formed by, or under the direction of, a RegisteredProfessional Engineer or other individual, knowledge-able in the requirements for design, inservice inspec-tion, and testing of Class MC and metallic liners ofClass CC components. The examination shall be per-formed either directly or remotely, by an examiner withvisual acuity sufficient to detect evidence of degrada-tion that may affect either the containment structuralintegrity or leak tightness.

(b) Prior to proceeding with a Type A test, condi-tions that may affect containment structural integrity or

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IWE-3510. I 1992 SECTION Xi - DIVISION I IWE-3512.2

TABLE IWE-3410-1ACCEPTANCE STANDARDS

Examination Component and AcceptanceCategory Part Examined Standard

E-A Containment surfaces IWE-3510E-B Pressure retaining welds IWE-3511E-C Containment surfaces requiring augmented IWE-3512

examinationE-D Seals, gaskets, and moisture barriers IWE-3513E-F Pressure retaining dissimilar metal welds IWE-3524E-G Pressure retaining bolting IWE-3515E-P All pressure retaining components '10 CFR 50,

Appendix J

leak tightness shall be accepted by engineering eval-uation or corrected by repair or replacement in accor-dance with IWE-3122.

IWE-3510.2 VT-3 Visual Examinations on CoatedAreas. The inspected area, when painted or coated,shall be examined for evidence of flaking, blistering,peeling, discoloration, and other signs of distress.Areas that are suspect shall be accepted by engineeringevaluation or corrected by repair or replacement in ac-cordance with IWE-3122. Supplemental examinationsin accordance with IWE-3200 shall be performed whenspecified as a result of the engineering evaluation.

IWE-3510.3 VT-3 Visual Examinations on Non-coated Areas. The inspected area shall be examinedfor evidence of cracking, discoloration, wear, pitting,excessive corrosion, arc strikes, gouges, surface dis-continuities, dents, and other signs of surface irregu-larities. Areas that are suspect shall be accepted byengineering evaluation or corrected by repair or re-placement in accordance with IWE-3122. Supplementalexaminations in accordance with IWE-3200 shall beperformed when specified as a result of the engineeringevaluation.

IWE-3511 Standards for Examination CategoryE-B, Pressure Retaining Welds

1WE-3511.1 VT-i Visual Examinations on Coated

Areas. The inspected area, when painted or coated,shall be examined for evidence of flaking, blistering,peeling, discoloration, and other signs of distress.Areas that are suspect shall be accepted by engineeringevaluation or corrected by repair or replacement in ac-cordance with IWE-3122. Supplemental examinations

in accordance with IWE-3200 shall be performed whenspecified as a result of the engineering evaluation.

IWE-3511.2 VT-I Visual Examinations on Non.cuated Areas. The inspected area shall be examinedfor evidence of cracking, discoloration, wear, pitting,excessive corrosion, arc strikes, gouges, surface dis-continuities, dents, and other signs of surface irregu-larities. Areas that are suspect shall be accepted byengineering evaluation or corrected by repair or re-placement in accordance with IWE-3 122.. Supplementalexaminations in accordance with IWE-3200 shall beperformed when specified as a result of the engineeringevaluation.

IWE-3512 Standards for Examination CategoryE-C, Containment Surfaces RequiringAugmented Examination

IWE-3512.1 VT-I Visual Examinations on CoatedAreas. The inspected area, when painted or coated,shall be examined for evidence of flaking, blistering,peeling, discoloration, and other signs of distress.Areas that are suspect. shall be accepted by engineeringevaluation or corrected by repair or replacement in ac-cordance with IWE:3122. Supplemental examinationsin accordance with IWE-3200 shall be performed whenspecified as a result of the engineering evaluation.

IWE-3512.2 VT-I Visual Examinations on Non-coated Areas. The inspected area shall be examinedfor evidence of cracking, discoloration, wear, pitting,excessive corrosion, arc strikes, gouges, surface dis-continuities, dents, and other signs of surface irregu-larities. Areas that are suspect shall be accepted byengineering evaluation or corrected by repair or re-placement in accordance with IWE-3122. Supplemental

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IWE-3512.2 REQUIREMENTS FOR CLASS MC COMPONENTS 1WE-3515.2

examinations in accordance with [WE-3200 shall beperformed when specified as a result of the engineeringevaluation.

IWE-3512.3 Ultrasonic Examination. Containmentvessel examinations that reveal material loss exceeding10% of the nominal containment wall thickness, or ma-terial loss that is projected to exceed 10% of the nom-inal containment wall thickness prior to the next ex-amination, shall be documented. Such areas shall beaccepted by engineering evaluation or corrected by re-pair or replacement in accordance with IWE-3122.Supplemental examinations in accordance with IWE-3200 shall be performed when specified as a result ofthe engineering evaluation.

IWE-3513 Standards for Examination CategoryE-D, Seals, Gaskets, and MoistureBarriers

IWE-3513.1 VT-3 Visual Examinations. Seals,gaskets, and moisture barriers shall be examined forwear, damage, erosion, tear, surface cracks, or other

defects that may violate the leak-tight integrity. De-fective items shall be repaired or replaced.

IWE-3514 Standards for Examination CategoryE-F, Pressure Retaining DissimilarMetal Welds

IWE-3514.1 Surface Examinations. The accep-tance standards of IWB-3514 shall apply within the ex-amination boundary of Fig. IWE-2500-1.

IWE-3515 Standards for Examination CategoryE-G, Pressure Retaining Bolting

IWE-3515.1 Visual Examinations. Bolting mate-rials shall be examined in accordance with the materialspecification for defects which may cause the boltedconnection to violate either the leak-tight or structuralintegrity. Defective items shall be replaced.

IWE-3515.2 Bolt Torque or Bolt Tension. Eitherbolt torque or bolt tension shall be within the limitsspecified for the original design. If no limits have beenspecified, acceptable bolt torque or bolt tension limitsshall be determined and utilized.

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