ML18348A770
| 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
1B~gulatory_ Docket fj_~
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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:
B.
- c.
c.
Internal Test Signal ( 4). 11 Change Item 4.c of Table 4.1.1 under surveillance method to read as 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
---- _____ ____:_ __ 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.
II l 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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