ML20198A962

Safety Evaluation Supporting Request for Relief from Inservice Insp Requirements

ML20198A962
Person / Time
Site:	Big Rock Point File:Consumers Energy icon.png
Issue date:	11/01/1985
From:	Office of Nuclear Reactor Regulation
To:
Shared Package
ML20151K400	List: ML20151K395 ML20198A944 ML20198A962
References
NUDOCS 8511060262
Download: ML20198A962 (9)

Text

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1. o g UNITED STATES 8 p, NUCLEAR REGULATORY COMMISSION O j WASHINGTON, D. C. 20555

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SAFETY EVALUATIOi! BY THE OFFICE OF NUCLEAR REACTOR REGULATION SUPPORTING RELIEF FROM INSERVICE INSPECTION REQUIREMENTS CONSUMERS POWER COMPANY BIG ROCK POINT PLANT DOCKET NO. 50-155 INTRODUCTION

', Technical Specification 9.3.a for the Big Rock Point Plant states that inservice examination of ASME Code Class 1, 2, and 3 ccmponents shall be performed in accordance with Section XI of the ASME Boiler and Pressure .

Vessel Code and applicable Addenda as required by 10 CFR 50.55a(g) except where specific written relief has been granted by the Commission. Certain requirements of later editions and addenda of Section XI are impractical to perform on older and materials plants because of the plants' design,(component geometry,Thus, 10 of construction.

Comission to grant relief from those requirements upon making the necessary findirgs.

By letter dated December 19, 1983, Consumers Power Company (CPC) submitted its inservice inspection program and additional information related to requests for relief from certain Code requirements detemined to be impractical to perform on the Big Rock Point Plant during the inspection interval. The program is based on the requirements of the 1977 Edition i through Sumer 1978 Addenda of Section XI of the ASME Code, and remains in f effect until January 1,1992 unless the program is modified or changed

. prior to the interval end date.

EVALUATION Requests for relief from the requirements of Section XI which have been i determined to be impractical to perfom have been reviewed b

contractor, Science Applications International Corporation (y the SAIC). The Staff's contractor's evaluations of the licensee's requests for relief and his recomendations are presented in the Technical Evaluation Report (TER) attached (ATTACPMENT1). The staff has reviewed the TER and agrees with i

the evaluations and recomendations. A sumary of the determinations made by the staff is presented in the following tables:

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CONCLUSION Based on the review summarized, the staff cercludes that relief granted from the examination and testirg rro,uirements and alternate methods and provisions imposed through this document oive reasnnable assurance of the piping and component pressure boundary and support structural integrity, that granting relief where the Code requiremsots aresimpractical 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 Lurden that could result if they were imposed on the facility.

ACKNOWLEDGEMENT This Safety Evaluation was prepared by Mr. B. Turovlin and Mr. T. Rotelle.

Dated: November 1,1985 s

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TABLE 1 . .

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CLASS 1 COMPONENTS LICENSEE PROPOSED IWB-2500-1 IWB-2500-1 SYSTEM OR AREA TO BE REQUIRED ALTERNATIVE RELIEF REQUEST ITEM NO. EXAM. CAT. COMPONENT EXAMINED METHOD EXAMINATION STATUS 81.11 B-A Reactor Circumferential Volumetric Each refuel- Granted Bl.12 Vessel - and Longitudinal outage perform Shell Welds prestartup hydro at I.1 times operating pressure B.21 B-A Reactor Circumferential Volumetric During next Granted B.22 Vessel and Meridional interval Bottom Head Welds examine Head accessible 90 degrees of 793-1 weld and hydro test.

83.90 B-D Reactor Nozzle-to- Volumetric Visual of Granted 83.100 Vessel Vessel accessible provided Nozzle in- surfaces of SEP Topic side radius nozzles V-4 is per-formed.

B5.10 B-F Reactor Nozzle-to- Volumetric Visual of Granted Vessel safe ends Surface accessible provided SEP welds surfaces Topic V-4 in plus volu- performed.

metric, visual and surface of accessible 20 in. recirc.

nozzles.

TABLE 1 . .

CLASS 1 COMPONENTS (CONTINUED) .

LICENSEE PROPOSED IWB-2500-1 IWB-2500-1 SYSTEM OR AREA TO BE REQUIRED ALTERNATIVE RELIEF REQUEST ITEM NO. EXAM. CAT. COMPONENT EXAMINED METHOD EXAMINATION STATUS

, B3.90 B-D Reactor 3 in. Nozzle Volumetric Remote visual Granted B3.100 B-F Vessel to-Vessel Welds, Surface of accessible provided SEP B5.10 to safe ends, internal sur- Topic V-4 is nozzle inside faces and hydro performed.

radius B5.10 B-F Reactor 6 ea. 14 in. Volumetric Mechanized UT Granted Vessel steam outlet Surface Visual VT-1 provided nozzles Hydro volumetric expanded to include 100%

of each weld.

88.10 B-H Reactor Suspension Volumetric Limited Remote Granted Vessel Rod Brackets or Surface Visual provided Vessel Hanger Hydro general area Lugs of shield Stabilizer annulus in-Brackets spected for leak during hydro B2.51 B-B Steam Drum Shell Welds Volumetric Shell welds Granted B2.52 within 30 arc either side of upper longi-tudinal centerline B3.150 B-D Steam Drum Nozzle-to Volumetric Upper One-Half Granted B3.160 Vessel welds -

of all full nozzle inside penetration radius nozzles

o 1 TABLE 1 . .

CLASS 1 COMPONENTS (CONTINUED) ,

LICENSEE PROPOSED IWB-2500-1 IWB-2500-1 SYSTEM OR AREA TO BE REQUIRED ALTERNATIVE RELIEF REQUEST ITEM NO. EXAM. CAT. COMPONENT EXAMINED METHOD EXAMINATION STATUS B8.40 B-H Steam Drum Welds in Volumetric 4 supports Granted Supports or Surface in upper portion per code.

B3.160 B-D Clean-up Nozzle inside Volumetric None Granted Regenera- radius tive and Nonregen-erative Heat Exchangers B3.150 B-D Clean-up Nozzle-to- Volumetric Visual VT-1 Granted Nonre- vessel welds and surface generative Hydro Heat Ex-changer B3.160 B-D Clean-up Nozzle Volumetric None Granted Deminer- inside alizer radius Tank B5.50 B-F Shutdown Dissimilar Volumetric Visual Granted cooling Metal Fitting Surface system to pipe weld weld 6-SCS-101-7 B5.50 B-F Piping Dissimilar Volumetric - Surface Only Granted B9.11 B-J Metal Fitting Surface 89.21 to Pipe Welds B9.40

TABLE 1 . .

CLASS 1 COMPONENTS (CONTINUED) .

LICENSEE PROPOSED IWB-2500-1 IWB-2500-1 SYSTEM OR AREA TO BE REQUIRED ALTERNATIVE RELIEF REQUEST ITEM NO. EXAM. CAT. COMPONENT EXAMINED METHOD EXAMINATION STATUS B9.11 B-J Piping Dissimilar Volumetric None Granted B9.21 Metal Pipe Surface 89.40 to Safe End We lds. 7 Welds B10.10 B-K-1 Main Recir Integrally Volumetric Visual Granted System Welded Piping or Surface Attachments 20 attachments B10.10 B-K-1 Reactor Integrally Volumetric None Granted ,

depressuri- welded piping or Surface zation attachments system 2 attachments B11.10 B-K-2 Component W e lds, settings Visual Remote Visual Granted Supports, of snubbers, Piping shock absorbers, spring-type hangers.

B12.10 B-L-1 Clean up Pump Casing Volumetric Surface on Granted B12.20 B-L-2 and main Welds accessible areas provided recirc. Pump Internal Visual visual during pump interior pumps surface hydro examined if pump is dis-assembled B12.40 B-M-2 Valves Interior Surface Visual Visual during Granted pro-of 6 valve hydro vided any valve categories '. disassembled have visual examination m -

TABLE 2 - .

CLASS 2 COMPONENTS ,

LICENSEE PROPOSED IWC-2500 IWC-2500 SYSTEM OR AREA TO BE REQUIRED ALTERNA~i1VE RELIEF REQUEST ITEM NO. EXAM. CAT. COMPONENT EXAMINED METHOD EXAMINATION STW'IJS C5.11 CF (See Circumferential Surface None No Relief C5.21 Attach- piping weld C5.11 required ment 1 to surface and Table 2) volumetric C5.21 C5.11 CF Regenera- Vent and Surface and None Granted C5.21 tive and drain lines volumetric piping to ,

heat ex- be reclass-  !

changers ified. I l

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TA8LE 2 . ,

ATTACHMENT 1 Penetrations affected:

Penetration Piping on Either Side i Number P&ID No. of Penetration H-12 M-111 Class 3

H-13 M-111 Class 3 j H-15 M-108 Non-classed / Class 3 i H-17 M-108 Non-classed

, H-18 M-110 Class 3 H-21 M-108 Non-classed H-22 M-107 Non-classed / Class 3

. H-23 M-107 Non-classed H-31 M-121 Non-classed t

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TABLE 3 - .

PRESSURE TESTS , .

IWA-5000 .

IWB-5000 IWC-5000 IWD-5000 LICENSEE PROPOSED SYSTEM OR PRESSURE TEST ALTERNATIVE RELIEF REQUEST COMPONENT REQUIREMENT TEST STATUS All systems IWB, IWC, IWD-5000 No system leakage Granted Class 1,2,3 require system test during outage leakage test each when hydrostatic refueling outage. test is scheduled.

IWB, IWC, IWD-5000 require system hydrostatic test each interval.

TABLE 4 VOLUMETRIC EXAMINATION METHODS LICENSEE SYSTEM OR PROPOSED ALTERNATIVE RELIEF REQUEST COMPONENT REQUIREMENT TEST STATUS Class 1 Ultrasonic examina- Calibration block Denied In-and 2 tion of class 1 and with side drilled sufficient B5.50 class 2 ferritic holes justification B9.12 steel piping systems for declaring l 89.31- shall be conducted Code require-C5.21 and in accordance with ments impracti-C5.22 Appdx. III, amended: cal.

For examination of welds, reflectors that produce a response greater -

than 50% of the

! reference level l shall be recorded.

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