ML20215G661

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Informs That Seismic Qualification of Either of Listed Options Re Resolution of Issue of Class 1 Indication of Tdi Diesel Generator Status in Control Room Will Be Based on Generic Ltr 87-02,per 870401 Commitment
ML20215G661
Person / Time
Site: Rancho Seco
Issue date: 04/13/1987
From: Julie Ward
SACRAMENTO MUNICIPAL UTILITY DISTRICT
To: Miraglia F
Office of Nuclear Reactor Regulation
References
REF-GTECI-A-46, REF-GTECI-SC, TASK-A-46, TASK-OR GL-87-02, GL-87-2, JEW-87-525, TAC-63030, NUDOCS 8704170226
Download: ML20215G661 (2)


Text

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gsuun SACRAMENTO MUNICIPAL UTILITY DISTRICT C P. O. Box 15830, Sacramento CA 95852-1830,(916) 452-3211 AN ELECTRIC SYSTEM SERVING THE HEART OF CALIFORNIA JEW 87-525 APR 131987 Director of Nuclear Reactor Regulation Attn:

Frank J. Miraglia, Jr.

Division of PWR Licensing-B U. S. Nuclear Regulatory Commission Washington, D. C.

20555 Docket 50-312 Rancho Seco Nuclear Generating Station License No. DPR-54

Dear Mr. Miraglia:

By letter dated April 1, 1987, the District submitted to the Commission Proposed Amendment No. 147, Revision 2.

In the response to question 2 of Enclosure 10 of the April 1,1987, letter, the District committed to provide a resolution of the issue of Class 1 indication of the diesel generator status in the Control Room.

Prior to restart from the present outage, the District will provide a seismically qualified indication for the status of the Transamerica DeLaval (TDI) Diesel generators, either by qualification of Interim Data Acquisition Display System (IDADS) or by a single qualified indication per each TDI diesel generator.

The seismic qualification of either option will be based on the work of the Seismic Qualification Utility Group (SQUG) and the approach addressed in NRC Generic Letter 87-02:

Verification of Seismic Adequacy of Mechanical and Electrical Equipment in Operating Reactors, Unresolved Safety Issue (USI) A-46.

The District has previously discussed the approach described above during an NRC review with Mr. Ed Tomlinson.

8704170226 870413 PDR ADOCK 05000312 l

0 S

PDR RANCHO SECO NUCLEAR GENERATING STATION ' 14440 Twin Cities Road, Herald, CA 95638-9799;(209; 333-2935

Mr. Miraglia April 13,1987 If you have any questions concerning this submittal, please contact Mr. Ron Colombo at (916) 452-3211, extension 4236.

Since ly, k

John E. Ward Deputy General Manager, Nuclear cc: A. D'Angelo G. Kalman Region V (2)

MIPC (2)

INPO