ML19323H478

Forwards Safety Evaluation Supporting Design Aspects of Containment Purge Valve Isolation Override & Other Engineered Safety Feature Actuation Signals Except Radiation Monitors Which Initiate Containment Purge Isolation

ML19323H478
Person / Time
Site:	Point Beach
Issue date:	05/22/1980
From:	Clark R Office of Nuclear Reactor Regulation
To:	Burstein S WISCONSIN ELECTRIC POWER CO.
Shared Package
ML19323H479	List: ML19323H478 ML19323H480 ML19323H481
References
TAC-44877, TAC-44878, NUDOCS 8006130037
Download: ML19323H478 (2)

Text

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May 22, 1980 Dockets Nos. 50-266 and 50-301 Mr. Sol Burstein Executive Vice President Wisconsin Electric Power Company 231 West Michigan Street Milwaukee, Wisconsin 53201

Dear Mr. Burstein:

We have completed our review of the electrical, instrumentation, and control design aspects of the override of containment purge valve isolation and other ESF actuation signals for Point Beach Nuclear Plant, Units 1 and 2.

Based on this review, which is explained more fully in the enclosed Safety Evaluation Report and consultant's Technical Evaluation, we have concluded that the Point Beach design, as recently modified, is acceptable with the exception of the radiation monitors which initiate containment purge isolation.

At present, these monitors are not safety grade and do not satisfy the require-ments of IEEE-279-1971. This recomendation has been incorporated into Regula-tory Guide 1.141, Rev.1, " Containment Isolation Provisions for Fluid Systems",

with a proposed implementation schedule of January 1,1981. This revision has been endorsed by the ACRS, and its recomendations will be required following final staff approval, at which time you will be contacted further.

Our review of your January 9,1980 letter indicates that you have comitted to our " Interim Position" on containment purging and venting. We would expect this comitment to remain effective pending completion of our long-tem review of this generic issue.

Sincerely, k

Robert

, Chief Operating Reactors Branch #3 Division of Licensing

Enclosure:

Safety Evaluation Report cc w/ enclosure:

See next page 8006130037 y

Mr. Sol Burstein Wisconsin Electric Power Company cc: Mr. Bruce Churchill, Esquire Shaw, Pittman, Potts and Trowbridge 1800 M Street, N.W.

Washington, D. C.

20036 Document Department University of Wisconsin Stevens Point Library Stevens Point, Wisconsin 54481 Mr. Glenn A. Reed, Manager Nuclear Operations Wisconsin Electric Power Company Point Beach Nuclear Plant 6610 Nuclear Road Two Rivers, Wisconsin 54241 Ms. Kathleen M. Falk General Counsel Wisconsin's Environmental Decade 302 E. Washington Avenue Madison, Wisconsin 53703 1