ML20132A440

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Forwards Safety Evaluation Addressing Generic Ltr 83-28, Item 4.5.1 Re Reactor Trip Sys Reliability (Sys Functional Testing).Util Satisfactorily Completed Actions Required, Based on Commitment to Modify Reactor Trip Breakers
ML20132A440
Person / Time
Site: Trojan File:Portland General Electric icon.png
Issue date: 07/11/1985
From: Butcher E
Office of Nuclear Reactor Regulation
To: Withers B
PORTLAND GENERAL ELECTRIC CO.
Shared Package
ML20132A443 List:
References
GL-83-28, TAC-54118, NUDOCS 8507230041
Download: ML20132A440 (2)


Text

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Docket No. 50-344 July 11, 1985 hY Mr. Bart D. Withers Vice President Nuclear Portland General Electric Company 121 S.W. Salmon Street Portland,. Oregon 97204

Dear Mr. Withers:

Subject:

SAFETY EVALUATION FOR GENERIC LETTER 83-28, ITEM 4.5.1 Enclosed is the staff's Safety Evaluation addressing Reactor Trip System Reliability (System Functional Testing), Item 4.5.1 of Generic Letter 83-28.

Based on Portland General Electric's (PGE) commitment to modify the reactor trip breakers to allow automatic actuation of the shunt trip, provide for independent on-line testing of the undervoltage and shut trip mechanisms, and include such testing in the procedure used for monthly testing of the Reactor Protection System, the staff concludes that PGE has satisfactorily completed the actions required by Item 4.5.1 of Generic Letter 83-28.

Sincerely,

/S/

Edward J. Butcher, Acting Chief Operating Reactors Branch No. 3 Division of Licensing

Enclosure:

Safety Evaluation cc w/ enclosure:

See next page l

Distribution:

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Mr. Bart D. Withers Portland General Eletric Company Trojan Nuclear Plant cc:

Senior Resident Inspector U.S. Nuclear Regulatory Commission Trojan Nuclear Plant Post Office Box 0 Rainier, Oregon 97048 Robert M. Hunt, Chairman Board of County Commissioners Columbia County St. Helens, Oregon 97501 William T. Dixon Oregon Department of Energy Labor and Industries Building Room 111 Salem, Oregon 97310 Regional Administrator, Region V U.S. Nuclear Regulatory Commission Office of Executive Director for Operations 1450 Maria Lane, Suite 210 Walnut Creek, California 94596 We l

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