ML18095A463

Requests Addl Info to Resolve Engineering & Procedural Concerns Re Scope of Design Base & Testing Program for All Piping Sys safety-related motor-operated Valves in Line W/ Recommendations of Generic Ltr 89-10

ML18095A463
Person / Time
Site:	Salem, Hope Creek
Issue date:	08/31/1990
From:	Crimmins T Public Service Enterprise Group
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
GL-89-10, NLR-N90179, NUDOCS 9009120094
Download: ML18095A463 (3)

Text

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Public Service Electric and Gas Company Thomas M. Crimmins, Jr. Public Service Electric and Gas Company P.O. Box 236, Hancocks Bridge, NJ 08038 609-339-4700 Vice President - Nuclear Engineering AUG 3 1 1990 NLR-N90179 United States Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 Gentlemen:

GENERIC LETTER 89-10 & SUPPLEMENTS SALEM AND HOPE CREEK GENERATING STATIONS DOCKET NOS. 50-272, 50-311 AND 50-354 As indicated in our December 27, 1989 response, Public Service Electric and Gas Company (PSE&G) is committed to performing a design base review and testing program for all piping system safety related motor operated valves (MOVs) in line with the recommendations of GL 89-10.

To date, we have not identified any exceptions to the GL 89-10 recommendations or schedule.

PSE&G's GL 89-10 MOV program will consist of two distinct phases and will utilize the information contained in Supplement 1 to the generic letter to the extent practicable. Our program is aggressive, supports the major milestones identified below, and maintains a measure of flexibility to maximize the use of applicable test results provided by various industry groups.

These external results will be reconciled with completed work on an ongoing basis to ensure that acceptable safety margins exist under design basis conditions.

In phase 1, based on a sample of valves, we will assess our existing MOV program for all three stations in light of the GL 89-10 recommendations as supplemented. This preliminary functional review will address the GL 89-10 MOV concerns to include cable sizing, undervoltage and inadvertent operation from the control room. Phase 1 will also provide valuable scoping information to ensure that adequate resources are allocated to the balance of the GL 89-10 program activities.

0203,1 ---

9009120094. 900831 PDR ADOCK 05000272 P PNU

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AUS a 1 1990 Document Control Desk 2 NLR-N90119 During phase 2 we will review the remaining design basis information, analyze the set points for all the program scope MOVs, and implement a comprehensive testing program to validate the set points. The test program will encompass in-situ, prototype and final test result data.

The final portion of phase 2 will address long-term program implementation to include plant procedure refinement, test result trending and periodic program reassessment. A more detailed GL 89-10 program description will be available onsite January 1, 1991 in accordance with Supplement 2 to GL 89-10.

The scheduled completion date for phase 1 is November 30, 1990. The scheduled completion date for phase 2 for Salem Units 1 & 2 and the Hope Creek plant is June 27, 1994.

We have concerns, both engineering and procedural, regarding the basis for the scope of your recommendations. To resolve these concerns please provide the following information:

- the final, approved, full flow-full d/p test results from INEL referenced in GL 89-10,

- the Appendix B program description that was applied to the INEL test program,

- a statistical correlation between the number of valves tes.ted and the population of similar valves in the industry, and

- a comparison of the above correlation with industry standards for sample sizing and resultant confidence levels.

We believe that this is a reasonable request in light of the additional impact the generic letter will have on our operations and maintenance activities as well as outage durations.

Sincerely, 7-,#J~~

AUS 3 t 1990 Document Control Desk 3 NLR-N90179 c Mr. J. c. Stone Licensing Project Manager Mr. s. Denbek Licensing Project Manager Mr. T. Johnson Senior Resident Inspector Mr. T. Martin, Administrator Region I Mr. Kent Tosch, Chief New Jersey Department of Environmental Protection Division of Environmental Quality Bureau of Nuclear Engineering CN 415 Trenton, NJ 08625