ML20140H110

Submits Info Re Startup Check List for Automatic Operation of Emergency Diesel Generators,Sys Operating Procedure 92-04,in Response to NRC .Numbers Will Be Assigned to All Valves in Emergency Diesel Generator Rooms

ML20140H110
Person / Time
Site:	Fort Saint Vrain
Issue date:	03/31/1986
From:	Brey H PUBLIC SERVICE CO. OF COLORADO
To:	Berkow H Office of Nuclear Reactor Regulation
References
P-86228, TAC-59801, NUDOCS 8604040050
Download: ML20140H110 (2)

Text

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Company of Colorado 2420 W. 26th Avenue, Suite 1000, Denver, Colorado 80211 March 31, 1986 Fort St. Vrain Unit No. 1 P-86228 Director of Nuclear Reactor Regulation U.S. Nuclear Regulatory Comission Washington, D.C.

20555 Attn: Mr. H. N. Berkow, Director Standardization and Special Projects Directorate Docket No. 50-267

SUBJECT:

Emergency Diesel Generators

REFERENCES:

1) NRC letter dated 2/24/86, Gagliardo to Lee (G-86099)

2) PSC letter dated 1/17/86, Gahm to Hunter (P-86046)

Dear Mr. Berkow:

This letter is in response to the NRC concerns discussed in Reference 1, regarding the startup check list for automatic operation of the Emergency Diesel Generators, System Operating Procedure (S0P) 92-04, Section 2.2.

As previously noted in Reference 2, S0P 92-04 Section 2.2 has been revised to ensure that the valves associated with Emergency Diesel Generator service water, engine lube oil drains, and engine water jacket heaters are aligned correctly for automatic Emergency Diesel Generator operation.

In addition, PSC has initiated General Services Action Request (GSAR) - 1105, to assign valve numbers to all valves in the Emergency Diesel Generator Rooms. This will include valves in the instrument air lines, which operate the service water temperature control val ves, engine lube oil drain valves and drain plugs, and engine water jacket heater valves.

PSC has implemented Procedure Deviation Report (PDR)86-290 which revises 50P 92-04 to require a I

documented valve line-up check and independent verification, for the I D 8604040050 860331 PDR ADOCK 05000267 l

P PDR

e P-86228 March 31, 1986

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Emergency. Diesel Generator auxiliary systems.

The valve line-up check list refers to the instrument air valves for the service water temperature control valves, engine lube oil drain valves and drain plugs, and engine water jacket heater valves by nomenclature.

When valve numbers have been assigned to these valves, the valve line-up-check list will be revised to refer to the valve numbers.

These administrative changes will ensure that the valve line-ups for the Emergency Diesel Generator auxiliary systems are correct, to support automatic operation of the Emergency Diesel Generators, and that the valve line-up check and independent verification are documented.

If ou have 'any further questions, please contact M. H. Holmes at (303 480-6960.

Very truly yours, R&w H. L. Brey, Manager Nuclear Licensing and Fuels HLB /8RD:bt