ML20128G644

Safety Evaluation Supporting 841221,27,850201 & 0312 Requests for Relief from ASME Section XI Code Requirements for First 10-yr Inservice Insp Program

ML20128G644
Person / Time
Site:	Peach Bottom
Issue date:	06/18/1985
From:	Office of Nuclear Reactor Regulation
To:
Shared Package
ML20128G637	List: ML20128G632 ML20128G644 ML20129A241
References
NUDOCS 8507090265
Download: ML20128G644 (7)

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,9, UNITED STATES NUCLEAR REGULATORY COMMISSION s,,' " W[ %l wAsMiNotoN. o. c. 20sss

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• SAFETY EVALUATION PY THE OFFICE OF N'XLEAR REACTOR REGl't ATION RELATED TO RE0 VESTS FOR RELIEF FROM EXAMINATION AND HYOR0 STATIC TEST REQUIREMENTS OF THE 1974 EDITION THROUGH SUMMER 1975 ADDENDA 0F SECTION XI 0F THE ASME CODE PHILADELFHIA ELECTRIC COMPANY PUBLIC SERVICE ELECTRIC AND GAS COMPANY DELMARVA POWER AND LIGHT COMPANY ATL ANTIC CITY EL ECTRIC COMPANY PEACH 00TTOM ATOMIC PCWER STATION, UNITS 2 AND 3 00CKETS NOS. 50-277 AND 50 278 BACKGROUND INFORMATION 10 CFR 50.55a(g)(4) of the Code of Federal Regulations requires components of boilina and pressurized water cooled nuclear facilities to meet the esamination and telt requirements set forth in applicable editions and addenda of Section XI of the A5ME Code throughout their service life s-unless the requirements are impractical to perform and relief from those requirements is granted by the Commission. The intervice inspection pro-gram for a facility is required to be updated to the latest approved edition and addenda of Section XI each ten year interval of facility operation'. '

Information concerning examinations and tests determined to be impractical to perform is required to be included in the program and submitted to the NRC for review and evaluation. Pursuantto10CFR50,55a(g)(5)(iv),where an impractical examination or test requirement is not included in the revised program, the licenlee is required to submit to the NRC the basis for the licensee's determination that the requirements are impractical to perform at its facility not later than twelve (12) months af ter the espiration of the ten year interval, a k 0

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By letter dated May 2, 1983, the NRC transmitted to Philadelphia Electric Company (tne licensee) a Safety Evaluation on impractical }

i examination and testing requirements of the 1974 Edition through l Summer 1975 Accenca of Section XI of the ASME Code for Peach Bottom Units ? end 3. The $1fety Eval'.'rtler granter' rCief fret those Code

,i requirements where the necessary findings could be made and denied the .

other requests. By letters dated December 21 and December 27, 1984, *  !

February I and March 13, 1905, the licensee provided additional . [

t information regarding the requests denied and other requests for relief in accordance with 10 CFR 50.55a(g)(5)(ty). The requests and additional information provided in the letters are evaluated below.

This evaluation is an addendum to the evaluation transmitted to Philadelphia Electric Company by the May 2, 1983 letter.

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[VALUAT!0N Aeouests for relief from the requirements of Section X1, 197* [dition

• through Summer 1975 Addenda, which have been cetermined to ce imsra:ti:a1 to perform have been reviewed by contractor, Science Applications Inter- l national Corporation (SAIC). The contractor's evaluations of the licensee's  !

requests for relief and his recommendations are presented in the Technical EvaluationReport(TER) attached. We have reviewed the TER and agree with t

the evaluations and recommendations. However, our basis for granting relief from the visual inspection requirement for the internal surfaces i

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3 of pumps and valves and not requiring U1 tnickness measurements at Unit 3 as an alternative is not predicated on the requiremen;s of other licensees, but co the results obtained from the visual inspec-tions parformed on similar components at Unit 2. A summary of our Jetorninations is presented in the folloaina tables.

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TABLE 1 CLASS 1 COW ONENTS LICENSEE

. PROPOSED 1W-2600 IW-2500 SYSTEM OR AREA TO BE REQUIRED ALTERNATIVE RELIEF REQUEST ITEM NO. EMAN. CAT. COMPONENT EMANINED METH00 EXAMINATION STATUS B5.6 8-L-1 Dumps Casing Volumetric Hydrostatic Granted (Unit 3) Welds Pressure and Leak Tests.

UT Wall Thick-ness Measure-ments 85.7 B-L-2 Sumps Internal Visual Hydrostatic Granted (Unit 3) Surfaces Pressure and '

(UT Wall ,

Leak Tests, Thickness ,

UT Wall Thick- Measurements '

ness Measure- are Optional) ments 86.7 8-M-2 */alves Internal Visual Hydrostatic Granted (Unit 3) Surfaces Pressure and (UT Wall Leak Tests, Thickness UT Wall Thick- Measurements ness Measure- are Optional) ments G

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n.r~9 CLASS 1 COMPONENTS d_~ ~,.r:_

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LICENSEE e'. 3 7 ,e  ;. < '-

PROPOSED r'/ ~

IWB-2600 < IWB-2500 SYSTEN'OR_2 AREA TO BE REQUIRED ALTERNATIVE REtIEF REQUEST' k

ITEM NO.

EXAM. CAT. COMPONENT ' EXAMINED METHOD EXAMINATION r 2 STATUS .'"'-

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IWC-1220 W ' ~

a"-ECCS Welds IWC-2520' One-Sixth of Granted ./

(Unit 3)* ''

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• Unit 2 Proposed Examinations and Schedule Previously Granted by Letter Dated June 1. 1984, Rivenbark to Bauer.

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0 TABLE 4 PRESSURE TEST IWA-5000 IWB-5000 IWC-5000 & LICENSEE PROPOSED RELIEF SYSTEM OR IWD-5000 TEST ALTERNATIVE REQUEST COMPONENT PRESSURE REQUIREMENT TEST PRESSURE STATUS Class 1, 2 & 3 Four-Hour Hold Time Ten-Minute Hold Time Granted For Uninsulated Piping M

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9 7-CONCLUSION Based on our review, we conclude that the examination requirements from which relief is sought are impractical; that relief granted from the examination requirements and alternate methods imposed through this document give reasonable assurance of the piping and component pressure boundary structural integrity as required as part of the licensee's inservice inspection program under 10 CFR 50.55a(g); that relief is authorized by law and will not endanger ,

life or property, or the common defense and security, and is otherwise in the public interest considering the burden that could result if the examination requirements were imposed on the facilities.

Dated: June 18, 1985 The following NRC personnel have contributed to this Safety Evaluation:

' George Johnson. * -

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