ML20008G264

Forwards Preliminary Safety/Relief Valve Operability Test Results,In Response to NUREG-0737,Item 2.D.1.Based on Preliminary Review,Operational Adequacy of Valves Has Been Demonstrated

ML20008G264
Person / Time
Site:	Zimmer
Issue date:	07/01/1981
From:	Borgmann E CINCINNATI GAS & ELECTRIC CO.
To:	Eisenhut D Office of Nuclear Reactor Regulation
References
RTR-NUREG-0737, RTR-NUREG-737, TASK-2.D.1, TASK-TM NUDOCS 8107070218
Download: ML20008G264 (2)

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~ THE CINCINNATI GAS & ELECTRIC COMPANY tsHllr CINCINNATt, OHIO 45206 E. A. BORGMANN SENIOR VICE PRESIDENT Docket No. 50-358 July 1, 1981 U.S. Nuclear Regulatory Commission ,

j Division of Licensing p

Office of Nuclear Reactor Regulation [;f y7 gf{op '

N gg Washington, D.C. 20555 /s 'I L,j) ,

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Attention: Darrell G. Eisenhut, Director JUL061981m.b

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SUBJECT:

WM. H. ZIMMER NUCLEAR POWER STATION - f UNIT 1 - PRELIMINARY SAFETY / RELIEF 4 VALVE (S/RV) OPERABILITY TEST RESULTS g N

REFERENCES:

1) Letter from T. J. Dente (BWR Owners' Group) .

to D. G. Eisenhut (NRC) , " Transmittal of Preliminary Data from Generic BWR Safety /

Relief Valve (S/RV) Test Program" dated July 1, 1981

2) Letter from D. B. Waters (BWR Owners '

Group) to R. H. Vollmer (NRC) , "NUREG-0578 Rcquirement 2.1.2 - Performance Testing of BWR and PWR Relief and Safety Valves"

• dated September 17, 1980

3) Letter from D. B. Waters (BWR Owners' Group) to D. G. Eisenhut (NRC) , " Responses to NRC Questions on the BWR S/RV Test Program" dated March 31, 1981 (Response to NRC Question No. 1)

Gentlemen:

In response to NUREG-0737, Item II.D.1, this letter provides the results of a preliminary review of the generic

' BWR S/RV test program results (Reference 1) in order to confirm the adequacy of the S/RV's for Zimmer Plant for all test.

conditions as defined in the test description (Reference 2).

The Wm. H. Zimmer Plant employs the CROSBY 6R10 type of S/RV, Model No. HB-65-BP-FN. The test results for the CROSBY 6R10 Valve, Model No. HB-65-BP-FN are applicable to this plant's valves (Reference 3). A preliminary review of the generic BWR S/RV test program results demonstrates that the tested valve 0

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To: U.S. Nuclear Regulatory Commission July 1. 1981

Subject:

Wm. H. Zimmer Nuclear Power Station - Page #2 Unit 1 - Preliminary Safety / Relief Valve (S /RV) Operability Test Results satisfies the acceptance criteria for operability. Consequently, based on this preliminary review, the operational adequacy of the S/RV's for the Zimmer Plant has been demonstrated.

Very truly yours, THE CINCINNATI GAS & ELECTRIC COMPANY By

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E. A. BORGMANN EAB: dew cc: Charlec Bechhoefer M. Stanley Livingston Frank F. Hooper Troy B. Conner, Jr.

James.P. Fenstermaker Steven G. Smith William J. Moran

~J. Robert Newlin Samuel H. Porter James D. Flynn F. T. Daniels W. Peter Heile James H. Feldman, Jr.

John D. Woliver Mary Reder David K. Martin George E. Pattison Andrew B. Dennison

-State of Ohio- )

County of Hamilton)ss sworn to and subscribed before me this /4 day i of July, 1981.

YA h /Wm Ngtar((/ Public i  ?..ARILYN J. LUERSEN l nemy ru" .,

o e cw My Cornmiss:ca Expae3 June 7,1933

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