ML072780552
| ML072780552 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 09/20/2007 |
| From: | AmerGen Energy Co |
| To: | Office of Nuclear Reactor Regulation |
| SECY RAS | |
| References | |
| 50-219-LR, AmerGen-Applicant-48, RAS 14262 | |
| Download: ML072780552 (20) | |
Text
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DOCKETED APPLICANT'S EXHIBIT 48 U.S. NUCLEAR'REGULATORY COMMISSION USNRC inthe Mater of aFcil_. _ 0.. UL, October 1,2007 (10:45am) Docket NO.SQ-02. -LK Official Exhibit No.
OFFERED b - ppicanVL ensee Intervenor _______
OFFICE OF SECRETARY NR Other RULEMAKINGS AND ADJUDICATIONS STAFF " INTB~IMIFIED on C Witness/Panel f/PT" AR ICE tionlaken. DIVI7TE EJECTED WITHDRAWN ARTICLE IWE-1000porererk SCOPE AND RESPONSIBILITY IWE-I100 SCOPE to the containment vessel. These components shall be examined in accordance, with the rules of IWB or .IWC, This Subsection provides the rules and requirements as appropriate to the classification defined by the De-for inservice inspection, repair, and replacement of sign Specifications.
Class MC pressure retaining components and their in-tegral attachments, and of metallic shell and penetration liners of Class CC pressure retaining components and IWE-1230 ACCESSIBILITY FOR their integral attachments in light-water cooled plants.
EXAMINATION
[WE-1231 Accessible Surface Areas 1WE-1200 COMPONENTS SUBJECT TO (a) As a minimum, the following portions of Class EXAMINATION MC containment vessels, parts, and appurtenances and IWT-1210 EXAMINATION REQUIREMENTS Class CC metallic shell and penetration liners shall re-main accessible for either direct or remote visual ex-The examination requirements of this Subsection amination, from at least one side of the vessel, for the shall apply to Class MC pressure retaining components life of the plant:
and their integral attachments and to metallic shell and (1) openings and penetrations; penetration liners of Class CC pressure retaining com- (2) structural discontinuities; ponents and their integral attachments. These exami- (3) single-welded butt joints from the weld side; nations shall apply to surface areas, including welds (4) 80% of the surface area defined.in Table [WE-and base metal. 2500-1, Examination.Category E-A; and (5) surface areas identified in IWE-1240.
(b) The requirements of IWE7-232 shall be met IWE.1220 COMPONENTS EXEMPTED FROM when accessibility for visual examination is not from EXAMINATION the outside surface.
The following components (or parts of components) are exempted from the examination requirements of IWE-1232 Inaccessible Surface Areas IWE-2000:
(a) vessels, parts, and appurtenances that are outside (a) Portions of Class MC containment vessels, parts, the boundaries of the containment as defined in the and appurtenances that are embedded in concrete or Design Specifications; otherwise made inaccessible during construction of the (b) embedded or inaccessible portions of contain- vessel or as',a result of vessel repair, modification, or ment vessels, parts, and appurtenances that met the re- replacement are exempted from examination, provided:
quirements of the original Construction Code; (1) no openings or penetrations are embedded in
.(c') portions of containment vessels, parts, and ap- the concrete; purtenances that become embedded or inaccessible as (2) all welded joints that are inaccessible for ex-a result of vessel repair or replacement if the conditions amination are double buttwelded and are fully radio-.
of IWE-1232 and IWE-5220 are met; graphed and, prior to being covered, are tested for leak (d) piping, pumps, and valves that are. part of the tightness using a gas medium test, such as Halide Leak containment system, or which penetrate or are attached Detector Test:
215
-T-e/np (c4 .e :'S:C
I IWE-123 1992 SECTION XI - DIVISION I IM"E- 1242 (3) all weld joints that are not double butt welded (a) interior and exterior: :.containment "surface areAs remain accessible, for examination from the weld side; thatýare.subject to accelerated corrosion with no.or im-and irnalcorr.si.nallowance or areas ..:where: thel.. absence (4) the vessel is leak rate tested after completion or:jepeited-ioss of.protective coatings has resttlted:..in of construction, repair, or replacement to the leak rate substaniat: otrrosioni.and pitting. Typical locations of requirements of the Design Specifications, such areas are those exposed to standing water, re-(b) Portions of Class. CC metallic shell and penetra- peated wetting and drying, persistent leakage, and tion liners that are embedded in concrete or otherwise those with geometries that- permit water accumulation, made inaccessible during construction or as a result of condensation, and microbiological attack. Such areas repair or replacement are exempted from examination, may include penetration sleeves, surfaces wetted during provided: refueling, concrete-to-steel shell or liner interfaces, (1) all welded joints that are inaccessible for ex- embedment zones, leak chase channels, drain areas, or
- amination are examined in accordance with CC-5520 sump liners.
- and, prior to being covered or otherwise obstructed by (b). interior and exterior containment surface areas adjacent structures, components, parts, or appurte- that are subject to excessive wear from abrasion or ero-nances, are tested for leak tightness in accordance with sion that causes a loss of protective coatings, defor-CC-5536; and mation, or material loss. Typical locations of such (2) the containment is leak rate tested after com- areas are those subject. to substantial traffic, sliding (2)s the ratestested after com-mi isnleacsntainmen pletion of construction, repair, or replacement to the pads or supports, pins or devises, shear lugs, seismic leak rate requirements of the Design Specifications. restraint%, surfaces exposed to water jets from testing operations or safety relief valve discharges, and areas that experience wear from frequent vibrations.
rWE-1240 SURFACE AREAS REQUIRING Identification of Examination Surface SIwi-1242 AUGMENTED EXAMINATION Areas MTr-1241 Examination Surface Areas Surface areas requiring augmented examination shall Surface areas likely to experience accelerated. deg- be determined in accordance with IWE-1241, and shall radation and aging.require the augmented examinations be. identified in the Owner's Inspection Program.
identified in Table IWE-2500-1, Examination Category Examination methods shall be in accordance with E-C. Such* areas include the following: IWE-2500(c).
216
ARTICLE IWE-2000 EXAMINATION AND INSPECTION IWE-2200 .PRESERVICE EXAMINATION (3) When a system leakage test, is required by IWE-5220, the preservice examination may be per-(a) Examinations listed in Table IWE-2500-1 shall formed either prior to or following the test.
be completed prior to initial plant startup. These pre-(e) Welds made as part of a, repair or a replacement service examinations shall include the pressure retain-program shall be examined in accordance with the re-ing portions of components not exempted by IWE-quirements of IWA-4000, except that for welds joining 1220.
Class MC or Class CC components toyitems designed, (b) When visual examinations are required, these ix-constructed, and installed to the requirements of Sec-aminations shall be performed in accordance with [WE-tion 111, Class 1, 2, or 3, the examination requirements 2600, following the completion of the pressure test re-of IWB-2000, IWC-2000, or IWD-2000, as applicable, quired by the Construction Code and after application shall apply.
of protective coatings (e.g., paint) when such coatings (f) Preservice examination for a repair or replace-are required.
ment may be conducted prior to installation provided:
(c) When surface examinations are required by Ta-(1) the examination is performed after ihe pressure ble rWE-2500-1, shop or field examinations in accor-test required by the Construction Code has been com-dance with NE-5000 for Class MC or CC-5500 for pleted; Class CC may serve in lieu of the on-site preservice (2) the examination is conducted under conditions examinations, provided.
and with equipment and techniques equivalent to those (1) the examinations are conducted by the same that are expected to be employed for subsequent in-method :with equipment and techniques equivalent to service examinations; and those that are expected to be employed for subsequent (3) the shop or field examination records are, or inservice examinations; can be, documented and identified in a form consistent (2) the shop or field examination records are, or.
with that required by IWA-6000.
can be, documented and identified in a form consistent (g) When paint or coatings are reapplied, the con-with those required in IWA-6000; and dition of the new paint or coating shall be documented (3) the examinations are performed after the pres-in the preservice examination records.
sure test required by the Construction Code has been completed.
(d) When a vessel, liner, or a portion thereof is re- IWE-2400 INSPECTION SCHEDULE paired or replaced during the service lifetime of a plant, the preservice examination requirements for the vessel IWE-2410 INSPECTION PROGRAM
.repair or replacement shall be met. Inservice examinations and system pressure tests (1) When the repair or replacement is..performed may be performed during plant outages such as re-while the plant. is. not in service, the preservice ex- fueling shutdowns or maintenance shutdowns. The re-
- amination shall be performed prior to the resumption quirements of either Inspection Program A or Inspec-of service.
tion Program B shall be met.
(2). When the repair or replacement is performed while the plant is in service, the preservice examination IWE-2411 Inspection Program A may be deferred to the next scheduled plant outage, provided nondestructive examination in accordance (a). With the exception of the examinations that may with the approved repair program is performed. be deferred until the end of an inspection interval, as 217
IWIE-2411 1992 SECTION XI - DIVISION I 1WE-2500 TABLE IWE-2411-1 TABLE IWE-2412-1 INSPECTION PROGRAM A INSPECTION PROGRAM B Inspection Period, Minimum Maximum Inspection Period, Inspection. Calendar Years of Examinations Examinations Calendar Years of Minimum Maximum Interval Plant Service Completed, % Credited, % Inspection Plant Service, . Examinations Examinations 1st 3 100 100 Interval Within the Interval Completed, % Credited, %
1st 3 16 34 2nd 7 33 67 7 50 67 10 100 100 10 100 100 3rd 13 16 34 Successive 3 16 34 17 40 50 7 50 *67 20 66 75 10 100 100 23 100 100 4th 27 8 16 30 25 34 33 50 67 accordance with IWE-3000, and the component is 37 75 100 found to be acceptable for continued service, the areas 40 100 containing such flaws, degradation, or repairs shall be reexamined during the next inspection period listed in the schedule of the inspection program of IWE-2411 or IWE-2412, in accordance with Table IWE-2500-l, specified in Table IWE-2500-1, the required exami- Examination Category E-C.
.nations. shall be completed during each successive in- (c) When the reexaminations required by IWE-spection interval, in accordance with Table IWE-241 1-1. 2420(b) reveal that the flaws, areas of degradation, or Following completion of Program A after 40 -years, repairs remain essentially unchanged for three consec-successive inspection intervals shall follow the 10 year utive inspection periods, the areas containing such inspection interval of Program. B. flaws, degradation, or repairs no longer require aug-(b) The inspection period specified in IWE-241 1(a) mented examination in accordance with Table IWE-may be decreased or extended by as much as 1 year 2500-1, Examination Category E-C.
to enable an inspection to coincide with a plant outage, within the limitations of lWA-2430(c).
IWE-2430 ADDITIONAL EXAMINATIONS (a) Examinations performed during any one inspec-IWE-2412 Inspection Program B tion that reveal flaws or areas-of degradation exceeding (a) With the exception of the examinations that may the acceptance standards of Table IWE-3410-1 shall be be deferred until the end of an inspection interval, as extended to .include an additional number of exami-specified in-Table IWE-2500-1, the required exami- nations within the same category approximately equal nations shall be completed during each successive in- to the initial number of examinations during the in-spection interval, in accordance with Table IWE-2412-i. spection.
. (b) The inspection period specified in IWE-2412(a) (b) When additional, flaws or areas of degradation may be decreased or extended by as much as 1 year that exceed the acceptance standards of Table IWE-to enable an inspection to coincide with a plant outage, 3410ý1 are revealed, all of the remaining examinations within the limitations of IWA-2430(d). within the same category shall be performed to the ex-tent specified in Table IWE-2500-1 for the inspection interval.
IWE-2420 SUCCESSIVE INSPECTIONS (a) The sequence of component examinations estab-IWE-2500 EXAMINATION AND PRESSURE lished dring the first inspection interval shall be re-TEST REQUIREMENTS peated during each successive inspection interval, to the extent practical. (a) The method of examination for the components, (b) When component examination results require parts, and items (e.g., seals, gaskets, and bolts) of the evaluation of flaws, areas of degradation, or repairs in pressure retaining boundaries shall comply with those 218
IWE-2500 REQUIREMENTS FOR CLASS MC COMPONENTS rWE-2600
/
Examination Surface (1) Surface areas accessible from both sides shall A-B " be visually examined using a VT-1 visual examination method.
(2) Surface areas accessible from one side only-112 in. 1/2 in.
shall be examined for wall thinning using an ultrasonic thickness measurement method in accordance with Sec-A B tion V, T-544.
(3) When ultrasonic thickness measurements are performed, one foot square grids shall be used. The number.and location of the grids shall be determined U I C D by 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 be marked such that periodic reexamination of that loca-tion can be performed in accordance with the require-Examination Surface ments of Table IWE-2500-1, Examination Category C-D E-C.
Surface Areas A - B and C - D
- FIG: lWE-2500-1 biSSIMILAR METAL WELDS IWE-2600 CONDITION OF SURFACE TO BE EXAMINED (a) When a containment vessel or liner is painted or tabulated in Table IWE-2500-1, except where alternate coated to protect surfaces from corrosion, preservice examination methods are used that meet the require- and inservice visual examinations shall be performed
( ments of IWA-2240. without the removal of the paint or coating.
(b) When paint or coatings are to be removed, the (b) When removal of paint or coating is required, it paint or coatings shall be visually examined in accor- shall be removed in a manner that will not reduce the.
dance with Table IWE-250(1-l prior to removal. base metal or weld thickness below the design thick-(c) Examination methods for surface areas for aug- ness. Reapplied paint and coating systems shall be mented examination in IWE-1242 shall comply with compatible with the existing system, and shall be ex-the following criteria. amined in accordance with IWE-2200(g).
219
Fig. rWE-2500-2 1992 SECTION XI - DIVISION I Examination area A-B 1 m LIlftdIrr containment shell or liner B
External concrete-to-metal interface moisture barrier A Examination are C Internal co
- interfact b -Embedded FIG. IWE-2500-2 EXAMINATION AREAS FOR MOISTURE BARRIERS.
220
TABLE IWE-2500-1 (CONT'D)
EXAMINATION CATEGORIES EXAMINATION CATEGORY E-A, CONTAINMENT SURFACES Extent and. Frequency of Examination Extent and. Frequency of Examination Examination' 1st Deferral of Item Parts Requirements/ Examination Acceptance Inspection Successive Inspection to Method Standard Interval Inspection Intervals End of Interval9 No. Examined Fig. No. 9
- t 1 Method 4- Standard I Interval 1 Inspection Intervals 1 End of Interval E1.10I Containment Vessel Pressure Retaining Boundary
- 2,
'ii El.11 Accessible Surface Areas2,3-5 IWE-3510.1 General Visual? 100% 100%. Not permissible IWE-351 0.1 Prior to each Prior to each
- 2, Type A test' Type A test' 111 Accessible Surface Areas7ý4.3 IWE-3510.2 Visual, VT-3 IWE-3510.2 100% 100% N/A '-1 cr1 IWE-3510.3 IWE-3510.3 '5EH76fi"nter6ial *11 0
E1.20 Vent System IWE-3510.2 Visual, VT-3 100% 100% N/A IWE-3510.2 Accessible Surface Areasz,1.1,B IWE-3510.3 End of Interval End of Interval IWE-3510.3 Cr, 0
NOTES:, zm (1) Examination may be made from either the Inside or outside surface. 2:
(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-1231fa)(4).
(5) Examinatlon slhall Include the acs 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 In CC-4543.4. Examination shall Include the weld metal and the base metal for 1/, 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.
f.n*Refer to IWE-5220 for test requirements.
(9) Deferral of inspection Is not permissible In the 4th and successive Inspection Intervals.
)32 TABLE IWE-2500-1 (CONT'D)
EXAMINATION CATEGORIES I I
_ I 2Y -r 01i -(-
I EXAMINATION CATEGORY E-B, PRESSURE RETAINING WELDS
___________ I- It and Frequency of Examinati!on, 1st v Deferral of to Examination Item pection Successl 11 nspection to Parts Requirements/ Examination Acceptance l'n I:'x;mivid *terval InspectionInirerva'Is. .Endof IntervalF Examined Fig. No. Method Standard No I J. I = =
f c,3.10 Containment Penetration Welds 3. 3 Visual, VT-I IWE-3511 I 25% of the total , tns*"
L .L--I-- Permissible number of welds 1 ." ;z4umber of welds1' 2 E3.11 Longitudinal E3.12 Circumferential E3.13 Flued Hpad and Bellows Seal Circumferential Welds Joined to the Penetration E3.20 Flange Welds (Category C)0 Visual, VT-1 Permissible IWE-38i1 25% of the total 25% of the total 2
number of welds'. I number of welds", z I-,i 1.J E3.303 Permissible Nozzle-to-Shell Welds (Category D)6 Visual, VT-I IWE-351 1 25% of the total 2 125% of the total number of welds I number of weldsl',
v z
.- '- I NOTES: ./'I "
(1) Examination shall Include theweld metill and the base metal for 2/%In. beyond the edge of the weld.
(2) Welds shall be randomly selec!dhroughout the containment and representative of the type of welds described by each Item number, (31 Examination shall include relds made In accordance with Section III, Class MC, Including those Class MC welds shown in Figs. NE-1120-1 and f4E-1132-1. . ."
(4) Different welds sbalibe selected for examination each Inspection Interval.
(5) Includes only,,ttflose welds subject to cyclic loads and thermal stress during normal plant operation.
(6) Welded Joldt categories are as defined In NE-3351 for Class MC and CC-3840 for Class CC.
(7) tLeferrI ,f Inspection Is not permissible In the 4th and successive inspection Intervals.
I II
TABLE IWE-2500-1 (CONT'D)
EXAMINATION CATEGORIES EXAMINATION CATEGORY E-C, CONTAINMENT SURFACES REQUIRING AUGMENTED EXAMINATION Extent and Frequency of Examination Examination 1st Item Parts Requirements/ Deferral of No. Examination Acceptance Inspection Successive Examined Fig. No. Method Inspection to Standard Interval Inspection Intervals End of Interval 3 E4.10 Containment Surface Areas E4.11 Visible Surfaces Visual, VT-1 IWE-3512.1 100% of Surface 100% of Surface Not Permissible IWE-3512.2 Areas Identified Areas Identified2 by IWE-12421 by IWE-1242 E4.12 Surface Area Grid, Volumetric IWE-3512.3 100% of Minimum 100% of Minimum Minimum Wall Thickness Location Not Permissible Wall Thickness Wall Thickness Locations during Locations during each Inspection each Inspection Period, established Period, established in accordance In accordance .-rI k) with with 0 IWE-2500(c)(3) 2 lWE-2500(c)(3)2 and Cl and 2 2 IWE-2500(c)(4) IWE-2500(c)(4)
Cl
-I (d.~
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 consecutive Inspection periods.. Such areas no longer require augmented three examination in accordance with )WE-2420(c).
(3) Deferral of inspection is not permissible In the 4th and successive Inspection Intervals.
(5tl'-.."'ýir.
TABLE IWE-2500-1 (CONT'D)
EXAMINATION CATEGORIES EXAMINATION CATEGORY E-D, SEALS, GASKETS, AND MOISTURE BARRIERS Extent and Frequency of Examination Item Examination 1st Parts Requirements/ Examination Deferral of Acceptance Inspection Successive Inspection to No, Examined' Fig. No. Method Standard Interval Inspection Intervals End of Intervals 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-35'3 100% of each item 100% of each item Not permissible E5.30 Moisture Barrlers 2,2,4 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.
(2) 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.
I TABLE IWE-2500-1 (CONT'D)
EXAMINATION CATEGORIES EXAMINATION CATEGORY E-F, PRESSURE RETAINING DISSIMILAR METAL WELDS Extent and Frequency of Examination Examination 1st Deferral of Item Parts Requirements/ Examination Acceptance Inspection Successive Inspection to No. ExamIned3, 5 Fig. No. Method Standard Interval Inspection Intervals 4 End of Intervalb E7.10 Dissimilar Metal Welds IWE-2500-1 Surface [WE-3514 50% of the total 50% of the total Permissible number of weldsl,2 number of welds'. 2 I
I')
I..)
1)~
Cr NOTES; (1) Examination shall include the weld metal and the base metal for 1/z 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 (3) Includes dissimilar metal welds between the following combinations: item number.
(a) carbon or low alloy steels to high alloy steels (b) carbon or low alloy steels to high nickel alloys (c) high alloy steels to high nickel alloys (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) Deferral of Inspection is not permissible In the 4th and successive Inspection Intervals.
I I
TABLE IWE-2500-1 (CONT'D) I FX(AMTNATION CATEGORIES U'
05 EXAMINATION CATEGORY E-G, PRESSURE RETAINING BOLTING Extent and Frequency of Examination Examination 1st Deferral of Item Parts Requirements/ Examination Acceptance Inspection Successive Inspection to No. Examined Fig. No. Method Standard Interval Inspection Intervals End of. Intervalb E8.10 Bolted Connections' Surfaces Visual, VT-1 IWE-3515 100% of each bolted 100% of each bolted Permissible3 tn connection 2 4 connection, 4 E8.20 Bolted Connections Boit torque or tension IWE-3515 100% of bolts 100% of bolts. Permissible test 5 En t-)
NOTES:
(1) Examination shall include bolts, studs, nuts, bushings, washers, and threads in base material and flange ligaments between threaded.stud holes.
(2) Examination of bushlngs,:threads, and ligaments In base material of flanges Isrequired only when the connection is disassembled.
(3) Examination shall not be deferred when the connection is disassembled or when the bolting is removed.
(4) All visible surfaces shall be examined, Bolting may remain in place under tension when disassembly Is not otherwise required.
- 15) Bolt torque or tension test Is required only for bolted connections that have not been disassembled and reassembled during the Inspection Interval.
(6) Deferral of Inspection Is not permissible In the 4th and successive Inspection intervals.
TABLE IWE-2500-1 EXAMINATION CATEGORIES.
EXAMINATION CATEGORY E-P, ALL PRESSURE RETAINING COMPONENTS Extent and Frequency of Examination Examination/ 1st Deferral of Item Parts Test Examination No. Acceptance Inspection Successive Inspection to Examined Requirements Method Standard Interval Inspection Intervals End of Interval Containment Vessel E9.10 Pressure Retaining Boundary? System leakage 10 CFR 50, 10 CFR 50, Each repair, modifi- Each repair, modifi- Not permissible 1 test Appendix J App. J cation, or replace- cation, or replace-ment ment E9.20 Containment Penetration Bellows 10 CFR 50, 10 CFR 50, 10 CFR 50, 10 CFR 50, 10 CFR 50, Not permissiblei Appendix J Appendix J App. J - Appendix J, Appendix J (Type B test)
E9.30 Airlocks 10 CFR 50, 10 CFR 50, 10 CFR 50, 10 CFR 50, 10 CFR 50, Not permissible 1
'-J Appendix J Appendix J App. J Appendix J Appendix J (Type B test)
E9.40 Seals and Gaskets 10 CFR 50, 0 1.0 CFR 50, 11 CFR 50, 10 CFR 50, 10 CFR 50, Not permissible Appendix J Appendix J App. J Appendix J Appendix J (Type B test) 0 NOTES:
(1) Leakage tests may be deferred until the next scheduled leakage test, if allowed by IWE-5222.
(2) If leak chase channels are utilized, they shall beunplugged or tested in accordance with 10 CFR 50, Appendix J, Type 8 test.
r ARTICLE IWE-3000 ACCEPTANCE STANDARDS IWE-3100 EVALUATION OF IWE-3115 Review by Authorities NONDESTRUCTIVE (a) The repair program and the examination results.
EXAMINATION RESULTS shall be subject to review by the enforcement author-ities having jurisdiction at the plant site..
IWE-3110 PRESERVICE EXAMINATIONS (b) Evaluation of examination results may be subject IWE-3111 General to review by the regulatory authority having jurisdiction at the plant site.
The preservice examination required by IWE-2200 and performed in accordance with the procedures of
-IWA-2200 shall be evaluated by the acceptance stan-dards specified in Table IWE-3410-1. Acceptance of IWE-3120 INSERVICE NONDESTRUCTIVE components for service shall be in accordance with
- EXAMINATIONS 1WE-3112. IWE-3114, and IWE-3115. IWVE-3121 General Inservice nondestructive examination results shall be IWE-3112 Acceptance compared with recorded results of the preservice ex-amination and prior inservice examinations. Accep-(a) Components whose examination either confirms tance of the components for continued service shall be the absence of or reveals flaws or areas of degradation in accordance with IWE-3122, IWE-3124, and IWE-that do not exceed the acceptance standards of Table 3125.
IWE-3410-1 shall be acceptable for service, provided the flaws or areas of degradation are recorded in ac-cordance with the requirements of IWA-1400(h) and IWE-3122 Acceptance IWA-6220 in terms of location, size, shape, orienta-tion, and distribution within the component. WIVE-3122.1 Acceptance by Examination. Com-(b) Components whose examination reveals flaws or ponents whose examination results meet the acceptance areas of degradation that do not meet the acceptance standards listed in Table IWE-2500-1 shall be accept-standards of Table IWE-3410-1 shall be unacceptable able for continued service. Verified changes of flaws for: service. uidess such flaws or areas of degradation or areas -of degradation from prior examinations shall be recorded in accordance with IWA-1400(h) and are removed or repaired., to the extent necessary to meet the acceptance standards, prior to placement of. IWA-6220. Components that do not meet the accep-the component in service. tance standards of "WE-3000 shall be corrected in ac-cordance with the provisions shown in IWE-3122.2, IWE-3122.3, or JWE-3122.4.
IWE-3114 Repairs and Reexaminations 1NE-3122.2 Acceptance by Repair. Components Repairs and reexaminations shall comply with the whose examination results reveal flaws or areas of deg-requirements of IWA-4000. Reexamination shall be radation that do not meet the acceptance standards list-conducted in accordance with the requirements of ed in Table IWE-2500-1 shall be unacceptable for con-IWA-2200; the recorded results shall demonstrate that tinued service until the additional examination the. repair meets the acceptance standards specified in requirements of IWE-2430 are satisfied, and .the flaw Table IWE-3410-!. or area of degradation is either removed by mechanical 228
1"T&-31212.2 REQUIREMENTS FOR CLASS MC COMPONENTS IWE-3510.1 methods or the component repaired to the extent nec- lowing verification of the suspect areas by the supple-essary to meet the acceptance standards of IWE-3000. mental examination as required by IWE-3200, the re-IWE-3122.3 Acceptance by Repla*cement- As an quirements of IWE-3120 are satisfied.
alternative 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 replaced IWE-3200 SUPPLEMENTAL in accordance with IWE-7000.. EXAMINATIONS IWE-3122.4 Acceptance .by Evaluation Examinations that detect flaws or evidence of deg-(a) 'Components whose, examination results reveal radation that require evaluation in accordance with the flaws or areas of degradation that do not meet the ac- requirements of TWE-3100 may be supplemented by ceptance standards listed in Table IWE-3410-1 shall be other examination methods and techniques (IWA-2240) acceptable for service without the removal or repair of to determine the character of the flaw (i.e., size, shape, the flaw or area of degradation or replacement if an and orientation) or degradation. Visual examinations engineering evaluation indicates that the flaw or area that detect surface flaws or areas that are suspect shall of degradation is nonstructural in nature or has no ef- be supplemented by either surface or volumetric ex-fect on the structural integrity of the containment amination.
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- IWE-3400 STANDARDS ness or the reduced thickness can be shown by analysis to satisfy the. requirements of the Design Specifications,. IWE-3410 ACCEPTANCE STANDARDS the component shall be acceptable by evaluation. The.acceptance standards of Table 1WE-3410-.1 shall (b) When flaws or areas of degradation are accepted be applied to evaluate the acceptability of the com-by engineering evaluation, the area containing the flaw ponent for service following the preservice examination or. degradation. shall be reexamined in accordance with and each inservice examination.
t" IWE-2420(b) and (c).
(c) When portions of later editions of the Construc-tion Code or Section MI are used, all related portions IWE-34,30 ACCEPTABILITY shall be met. The engineering evaluation shall be sub-ject to review by. the enforcement and regulatory au- Flaws. or areas of degradation that do not exceed the thorities having jurisdiction at the plant site. allowable acceptance standards of AWE-3500 for the respective examination category shall be acceptable.
IWE-3i24 Repairs and Reexaminations Repairs and reexaminations shall comply with the requirements of rWA-4000. Reexarninations shall be
[WE-3500 ACCEPTANCE STANDARDS conducted in accordance with the requirements of IWE-3510 STANDARDS FOR EXAmENATION IWA-2200 and the recorded results *shall demonstrate CATEGORY E-A, CONTAINMENT that the repair meets the acceptance standards of Table SURFACES.
IWE-3410-1.
IWE-3510.1 Visual Examinations'- General IWE-3125 (a) The General Visual Examination shal be per-Review by Authorities formed by, or under the direction of, a Registered The repair program and the reexamination results. Professional Engineer or other individual, knowledge-shall be subject to review by the.enforcement author- able in the requirements for design, inservice inspec-ities having jurisdiction at the plant site. tion, and testing of Class MC and metallic liners of Class CC components. The examination shall be per-formed either directly or remotely, by an examiner with IWE-3130 INSERVICE VISUAL visual acuity sufficient to detect evidence' of degrada-EXAMINATIONS tion that -may affect either the containment structural Components, whose visual examination as specified integrity or leak tightness.
in Table IWE-2500-1 reveals areas that are suspect, (b) Prior to proceeding with a Type A test, condi-'
shall be unacceptable for continued service unless, fol- tions that may affect containment structural integrity or 2129
IWE-3510.1 1992 SECTION XI - DIVISION I IWE-3512.2 TABLE IWE-3410-1 ACCEPTANCE STANDARDS Examination Component and Acceptance Category Part Examined Standard E-A Containment surfaces IWEý3510 E-B Pressure retaining welds IWE-3511 E-C Containment surfaces requiring augmented IWE-3512 examination E-D Seals, gaskets, and moisture barriers IWE-3513 E-F Pressure retaining dissimilar metal welds IWE-3514 E-G Pressure retaining bolting IWE-3515 E-P All pressure retaining components 10 CFR 50, Appendix J leak tightness shall be accepted by engineering eval- in accordance with IWE-3200 shall be performed when uation or corrected by repair or replacement in accor- specified as a result of the engineering evaluation:
dance with IWE-3122.
IWE-3511.2 VT-1 Visual Examinations on Non-IWE-3510.2 VT-3 Visual Examinations on Coated coated Areas. The inspected area shall be examined Areas. The inspected area, when painted or coated, for evidence of cracking, discoloration, wear, pitting, shall be examined for evidence of flaking, blistering, excessive corrosion, arc strikes, gouges, surface dis-peeling, discoloration, and other signs of distress. continuities, dents, and other signs of surface irregu-Areas that are suspect shall be accepted by engineering larities. Areas that are suspect shall be accepted by evaluation or corrected by repair or replacement in ac- engineering evaluation or corrected by repair or re-cordance with IWE-3122. Supplemental examinations placement in accordance with IWE-3122. Supplemental (
in accordance with IWE-3200 shall be performed when examinations in accordance. with IWE-3200 shall be specified as a result of the engineering evaluation. performed when specified as a result of the engineering evaluation.
ITWE-3510.3 VT-3 Visual Examinations on Non-coated Areas. The inspected area, shall be examined for evidence of cracking, discoloration, wear, pitting, IWE-35i2 Standards for Examination Category excessive corrosion, arc strikes, gouges, surface dis- E-C, Containment Surfaces Requiring continuities, dents, and other signs of surface irregu- Augmented Examination larities. Areas that are suspect shall be accepted by IWE-3512.1 VT-i Visual Examinations on Coated engineering evaluation or corrected by repair or re- Areas. The inspected area, when painted or coated, placement in accordance with IWE-3122. Supplemental shall be examined for evidence of flaking, blistering, examinations in'accordance with IWE-3200 shall be peeling, discoloration, and other signs of distress.
performed when specified as a result of the engineering Areas that are suspect shall be accepted by engineering evaluation. evaluation or corrected by repair or replacement in ac-cordance with IWE-3122. Supplemental examinations in accordance with IWE-3200 shall be performed when IWE-3511 Standards for Examination Category specified as a result of the engineering evaluation.
E-B, Pressure Retaining Welds IWE-3512.2 VIT-1 Visual Examinations on Non-IWE-3511.1 VT-1 Visual Examinations on Coated coated Areas. The inspected area shall be examined Areas. The inspected area, when painted or coated, for evidence of cracking, discoloration. wear, pitting, shall be examined for evidence of flaking, blistering, excessive corrosion, arc strikes, gouges, surface dis-peeling, discoloration, and other signs of distress. *continuities, dents, and other signs of surface irregu-Areas that are suspect shall be accepted by engineering larities. Areas that are suspect shall be accepted by evaluation or corrected by repair or replacement in ac- engineering evaluation or corrected by repair or re-cordance with IWE-3122. Supplemental examinations placement in accordance with lWE-3122I. Supplemental
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MT-E35L-2.2 REQUIREMENITS FOR CLASS MC COMPONENTS rWE_-3515.2 examinations in accordance with rWE-3200 shall be defects that may violate the leak-tight integrity. De-performed when specified as a result of the engineering fective items shall be repaired or replaced.
evaluation.
,VE-3514 Standards for Examination Category IWE-3512.3 Ultrasonic Examination. Containment E-F, Pressure Retaining Dissimilar vessel examinations that reVeal material loss exceeding Metal Welds 10% of the nominal containment wall thickness,, or ma-terial loss that is projected to exceed 10% of the nom- IWE-3514.1 Surface Examinations. The accep-inal containment wall thickness prior to the next ex- tance-standards of IWVB-3514 shall apply within the ex-amination, shall be documented. Such areas shall be amination boundary of Fig. IWE-2500-1.
accepted by engineering evaluation or corrected by re-pair or replacement in accordance with IWE-3122. IWE-3515 Standards for Examination Category Supplemental examinations in accordance with IWE- E-G, Pressure Retaining Bolting 3200 shall be performed when specified as a result of IWVE-3515.1 Visual Examinations. Bolting mate-the engineering evaluation. rials shall be examined in accordance with the material specification for defects which may cause the bolted connection to violate either the leak-tight or structural IWE-3513 Standards for Examination Category integrity. Defective items shall be replaced.
E-D, Seals, Gaskets, and Moisture Barriers IWE-3515.2 Bolt Torque or Bolt Tension. Either bolt torque or bolt tension shall be within the limits IWE-3513.1 VT-3 Visual Examinations. Seals, specified for the original design. If no limits have been gaskets, ind moisture barriers shall be examined for specified, acceptable bolt torque or bolt tension limits wear, damage, erosion, tear, surface cracks, or other shall be determined and utilized.
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ARTICLE IWE-4000 REPAIR PROCEDURES IWE-4100 SCOPE The rules of IWA-4000 apply.
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ARTICLE IWE-5000.
SYSTEM PRESSURE TESTS IWE-5200 SYSTEM TEST REQUIREMENTS IWE-5222 Deferral of Leakage Tests rWs5210 GENERAL Leakage tests for the following minor repairs or modifications to the pressure retaining boundary may Except as noted in .IWE-5240, the requirements of be deferred until, the next scheduled leakage test, pro-IWA-5000 are not applicable to Class MC or Class CC vided nondestructive examination is performed in ac-components.
cordance with the approved repair program:
(a) welds of attachments to the surface of the pres-.
IWE-5220. TESTS FOLLOWING REPAIR, sure retaining boundary;.
MODIFICATION, OR (b) repair cavities, the depth of which does not.pen-REPLACEMENT etrate the required design wall byFmore than 10%;
and.
IWE-5221 Leakage Test (c) welds attaching penetrations that are NPS I or Except as noted in IWE-5222, repairs or modifica- smaller.
tions to the pressure retaining boundary or replacement of Class MC or Class CC components shall be sub-jected to a pneumatic leakage test in accordance with the provisions ofTitle 10, Part 50 of the Code of Fed- IWE-5240 VISUAL EXAMINATION eral Regulations, Appendix 1, Paragraph IV.A, which The requirements of IWA-5246- for visual exami-states:
nations are applicable.
"Any major, modification, replacement of a component which is part of the primary reactor containment boundary, or resealing a seal-welded door, performed after the preoperational leakage rate test shall be fol-
-WE-5250 CORRECTIVE MEASURES lowed by either a Type A, Type B, or Type C test, as.applicable for the area affected by. the modification. If the leakage test requirements of IWE-5221 cannot
.The measured leakage from this test shall. be included be satisfied, the source of leakageshall be located and in the report to the Commission, required by V.A. The the area shall be examined to the extent necessary to acceptance criteria of III.A:5.(b), 111.B.3., or III.C.3., establish the requirements for corrective action. Repairs as appropriate, shall be met. Minor modifications, re- shall be. performed in accordance with the rules of placements, or resealing of seal-welded doors, per- lWE-4000 and leakage testing shall be reperforrned as formed directly prior to the conduct of a scheduled required by IWE-5220, prior to returning the compo-Type A test do not requ.ire a separate test.". nent to service.-
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ARTICLE IWE-7000 REPLACEMENTS
- ,.WE-7100 GENERAL REQUIREMENTS The rules of IWA-4000 apply.
"i "
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