ML18348A770

Proposed Change to Technical Specification to Modify Requirements for Testing of Primary System Pump Combinations & for Load Testing of Diesel Generators

ML18348A770
Person / Time
Site:	Palisades
Issue date:	03/12/1976
From:	Bixel D Consumers Power Co
To:	Purple R Office of Nuclear Reactor Regulation
References
Download: ML18348A770 (3)

Text

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1B~gulatory_ Docket

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.. -~ *consumers Power- -

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company General Offices: 212 West M°lchlgan Avenue, Jackson, Michigan 49201

• Area Code 517 788-0550 March 12, 1976 Director of Nuclear Reactor Regulat Att: Mr Robert A. Purple,* Chief Operating Reactor Branch No 1 US Nuclear Regulatory Conimission

. Washington, DC 20555 DOCKET 50,..255 ,.: *LICENSE DPR-20 ..

PALISADES PLANT; PRIMARY FLOW TESTING, DIESEL GENERATOR TESTING; PROPOSED TECHNICAL SPECIFICATIONS CHANGE

• The attached-proposed Technical Specifications change would modify the re-

,*.* quirements for testing of primary system pump combinations and the require-ments for load testing of th~ dies~l generators. Both requirements would permit additional testing flexibiJ,_ity Without significantly reducing equip-*

m~nt reliability.

• DavidA. Bixel Assistant Nuclear Licensing Administrator .

CC: JGKeppler, U~NRC

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• CONSUMERS POWER COMPANY Docket .No 50-255 Request for Change to the Technical Specifications License No DPR-20 For the reasons hereinafter set forth, it is requested that the Technical Specifi-cations contained in Provisional Operating License DPR-20, Docket 50-255, issued to Consumers Power Company on October 16, 1972, be changed as described in Section.

I below~

I. Change A. Change Item l.e of Table 4.i.l under surveillance method to read as follows:

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c. Internal Test Signal ( ). 11 B. Change Item 4.c of Table 4.1.1 under surveillance method to read as

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follows:

"c . Bistable Trip Tester ( 1 ) ( 4 ) . 11 Change the last sentence of Section 4.7.1.a to read as follows:

"The generator shall be synchronized from the control room and loaded to 2,400 .!_ 100 kW."

• II. Discussion Items A and B - Footnote 4 was added to the Technical Specifications with Change 16 which was associated with trip settings for operating pump combina-tion. At that time it was not recognized that this same footnote should be applied to the testing of the power range safety channels and the thermal margin/low pressurizer pressure channel. Both of these channels are associ-ated with the test surveillance function for which Footnote 4 should apply.

Item C - The Palisades Technical Specifications, Secti.on 4.7.1.a presently

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-- - - _____ ____:_ __ require-tha t--t-he- diesel- -generators *be-loaded to -t-he- nameplate- -rat-ing--(-2-,500--kW-,- -- - -

750 A) on a monthly test basis. In addition, Section 4. 7 .1. d requires that the diesel generators not be loaded beyond 2,500 kW. This combination of loading requirements leaves no room for normal load swings which may be ex-pected to occur during the test.

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• The objective of this monthly test is to demonstrate that the diesel generator will respond under accident conditions, The worst loading conditions, as specified in Section 8 of the FSAR, is 2, 714 hp (2,025 kW). We therefore conclude that testing at 2,400 .:!:.. 100 kW will provide adequate as~urance of the diesel generator's ability to perform under accident conditions and allow sufficient margin to assure that normal load swings will not result in ex-ceeding the 2,500 kW nameplate rating, III. Conclusions Based on the foregoing, both the Palisades Plant Review Committee and the Safety and A~dit Review Board have concluded that thiS proposed.Technical Specifications change does not involve an unreviewed safety question.

CONSUMERS POWER COMPANY

• Sworn and subscribed to before me this 12th day of* March 1976 *.

Jackson County, Michigan My commission expires May 18, 1976.

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