ML20236H461

Forwards Request for Addl Info Re 870120 Tech Spec Change Request Re Disconnection of Power from Accumulator Isolation Valve Operator.Response Requested within 60 Days of Ltr Receipt

ML20236H461
Person / Time
Site:	Trojan File:Portland General Electric icon.png
Issue date:	07/28/1987
From:	Chan T Office of Nuclear Reactor Regulation
To:	Cockfield D PORTLAND GENERAL ELECTRIC CO.
References
TAC-64533, NUDOCS 8708050200
Download: ML20236H461 (4)

Text

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July 28, 1987

. . 4 Docket No.: 50-344 DISTRIBUTION ,

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NRC & Local PDRs Mr. David W. Cockfield PD5 Plant File Vice President, Nuclear. _ GMHolahan i Portland General Electric Company JLee  !

121 S.W. Salmon Street Tchan Portland, Oregen 97204 OGC-Bethesda EJordan/JPartlow

Dear Mr. Cockfield:

ACRS (10) i

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION - LCA 150 - POWER LOCK 0UT OF ACCUMULATOR ISOLATION VALVES (TAC NO._64533) l 1

By letter dated January 20,.1987.. Portland General Electric Company requested a change to the Trojan Technical Specifications (LCA 150) regarding the  !

disconnection of power.from the accumulator isolation valves operator. The i proposed change would replace the requirement to specifically disconnect' power i' to these valves by removal of the breaker from the circuit, with a more general requirement that would allow the use of a lockout feature on the' accumulator isolation valve control room switches.

We have reviewed your submittal and find that additional information is required before we can complete our review. We ask that you provide the requested information contained in Enclosure 1 within 60 days from receipt of 4 this letter, or provide an alternative schedule for doing so within 15 days.

The reporting and/or recordkeeping requirements of this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.

Sincerely, ))

Original signed by Terence L. Chan, Project Manager Project Directorate V Division of Reactor Projects - III, IV, V and Special Projects  ;

Enclosure:

As stated cc: w/ enclosure' -l See next ge j ,

DRSP/P .- D :BD5 TChan:ts GW J .

hton 7/2//87' 7 /87 j B70B050200 870728 PDR ADOCK 05000344 P PDR ,

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. , \ l Mr. David W. Cockfield Portland General Electric Company Trojan Nuclear Plant !

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cc:

Senior Resident Inspectcr U.S. Nuclear Regulatory Commission Trojan Nuclear Plant Post Office Box 0 i Rainier, Oregon 97048 Michael J. Sykes, Chairman Board of County Commissioners Columbia County St. Helens, Oregon 97501 l Mr. David Kish Oregon Department of Energy Labor and Industries Building Room 111 Salem, Oregon 97310 Regional Administrator, Region V U.S. Nuclear Regulatory Commission 1450 Maria Lane, Suite 210 Walnut Creek, California 94596 l

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i ENCLOSURE  ;

• . X j REQUEST FOR ADDITIONAL INFORMATION t, TROJAN NUCLEAR PLANT PROPOSED TECHNICAL SPECIFICATION CHANGE REGARDING SURVEILLANCE REQUIREMENTS FOR POWER LOCKOUT OF THE ACCUMULATOR ISOLATION VALVES By letter dated January 20, 1987 you requested a change to the Trojan Technical Specifications regarding the disconnection of power from the accumulator isolation i valves operator. You proposed to delete the requirement to specifically disconnect {

power to these valves by removal of the breaker from the circuit and to replace it with a more general requirement that would allow the use of a lockout feature l . on the accumulator isolation valve control room switches. We have reviewed your-request and find that we require additional information before we can complete

. our review,

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1. Provide an electrical schematic and description of the lockout feature on l l

t the accumulator isolation valve control room switches referred to in your January 20, 1987 letter.

2. Provide a description of the procedure you intend to use to accomplish the proposed surveillance requirement (4.5.1.C) to verify that power to the isolation valves operator is disconnected. This is the procedure that l would involve the use of the lockout feature on the accumulator isolation valve control room switches.

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