ML20197H918

Forwards SER Re Tech Spec Revs for Initiation & Alarm Setpoints for Automatic Depressurization Sys Accumulator Backup Air Supply Sys.Revs Acceptable

ML20197H918
Person / Time
Site:	Columbia
Issue date:	07/26/1984
From:	Houston R Office of Nuclear Reactor Regulation
To:	Novak T Office of Nuclear Reactor Regulation
References
CON-WNP-0765, CON-WNP-765 TAC-54644, NUDOCS 8408060105
Download: ML20197H918 (4)

Text

RSB P/F: WPPSS Nuclear Project flo. 2 T. Collins W. Hodges JUL 2 61984 B. Sheron AD/RS Rdg.

Docket No.: 50-397 MEMORANDUM FOR: Thomas Novak, Assistant Director for Licensing Division of Licensing FROM: R. Wayne Houston, Assistant Director for Reactor Safety Division of Systems Integration

SUBJECT:

TECHNICAL SPECIFICATION CllANGE FOR Wr!P-2 Plant Name: WPPSS iluclear Project l'o 2 Docket Number: 50-397 Licensing Stage: OL Responsible Branch: Licensing Branch No. 2 Project (41 nager: R. Auluck OSI Branch Involved: Reactor Systems Branch TACS: 54644 Enclosed is the Reactor Systems Branch safety evaluation report on technical specification changes proposed for WNP-2. The revisions modify the initiation and alarm setpoints for the ADS accumulator bdCkup air supplyysystem. The proposal is acceptable.

Orisinal aig .el by R. Wayne Soaaten ,

Dock 05000a97 R. Wayr.e Houston, Assistant Director for Reactor Safety Wa [, Division of Systems Integration Enclosuee: As stated cc: AA Auluck D. Hoffman CONTACT: T. Collins, RSB X24478

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! e Encicsure 1 WASHIflGTON PUBLIC POWER SUPPLY SYSTEM WNP-2 TECHNICAL SPETTITCATION CHANGES ADMINISTRATIVE CONTROLS SECTION i

Washington Public Power Supply System (WPPS) has requested, by letter dated January 20, 1984, charges to the composition of the Nuclear Safety Assurance

Group (NSAG), Section 6.2.3 of the WNP-2 Technical Specifications. A brief description and our evaluation of this change is below.

Section 6.2.3.2 states that each member of the NSAG shall have a bachelor's degree in engineering or related science and at least two years professinnal level experience in his field. WPPS proposes to provide for alternate qualifications. The alternate requirements are those meeting ANS 3.1 Craft i Revision, dated March 13, 1981, Section 4.2 or 4.4, or equivalent, as l described in Section 4.1. We have reviewed this proposed change and find that it meets the requirements for members of an independent engineering group, such as the NSAG, described in Section 13.4 of the Standard Review Plan, NUREG-0800, and is, therefore, acceptable.

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Enclosure 2 L'ASHINGTON PUBLIC POWER SUPPLY SYSTEM WNP-2 SALP INPUT A. Functional Area: Licensing Activities

1. Management involvement in assuring quality.

Our rating is based on our contact with the licensee during this review.

Rating: Category 2 s

, S AF ETY EV ALU ATION REPO RT W N P -2 Ba_c k o ro u n d In a le t te r da ted Ma rc h 9, 1984 from G. C. So rens en to A. Sch wenc e r, Wa s h i ng ton Pu bl i c Po we r S u ppl y Sys tem ( th e licensee) reques ted changes to th e tee hnical spec i fica tio ns fo r WN P -2. Th e proposal wo ul d revise s urveil lanc e require-men ts 4. 5.1. e .3 (c) as fo ll o ws :

1) Ch a n ge th e ini tia tio n s e tpo i n t for th e A DS ac c umul a to r bac kup c ompres sed gas system from 14 013 p s i g o n dec rea sing pressure to 3 14 0 ps i g; and

2) Ch a n ge th e l o w pres sure ala rm s e tpo i n t f ro m 135:3 ps ig on decreasing pressure to 113 5 ps i g .

Sa f e ty Eval ua tion Th e c hanges pro po s ed el imina te the uppe r bound on bo th th e ini tia tio n s e tpo i n t a nd th e l o w pressure al a rm s e tpoin t for th e A DS acc umula to r backup compressed gas sys tem. This is c ons e rva ti ve s inc e a h i gh e r s e tpo i n t r es ul ts in ea rl i e r ac tua tion o f th e sys tem and/o r ala rm. We conclude tha t th e propos ed changes do no t:

1) Invol ve a s i gni fic a n t inc reas e in th e pro ba bil i ty or co ns equenc es o f an ac c iden t previously eval ua ted; of

2) Crea te th e pos s i bil i ty o f an acciden t of a ty pe di f f eren t f rom any eval ua ted previo usl y ; or

3) Involve a s i gni fic a n t redue tion in a ma rgin o f sa f e ty .

The pro pos ed technical s pec i fica tion cha nge is, the re fo res a c c e p ta bl e.