ML20235H950

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Forwards Proposed Tech Specs 3.7.7 Re Control Room Habitability,Authorizing Emergency Backup Power for One Train of Dampers & Fans to Not Be Available in Modes 5 & 6, Per Request
ML20235H950
Person / Time
Site: Beaver Valley
Issue date: 07/08/1987
From: Carey J
DUQUESNE LIGHT CO.
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
Shared Package
ML20235H953 List:
References
2NRC-7-173, TAC-62942, NUDOCS 8707150330
Download: ML20235H950 (1)


Text

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2NRC-7-173 JULY 8,1987 Telephone (412) 393-6000 OE x4 Shippingport. PA 15077 4004 United States Nuclear Regulatory Commission i

ATTN:

Document Control Desk Washington, DC 20555

SUBJECT:

Beaver Valley Power Station Unit No. 2 l

Docket No. 50-412 Technical Specification Changes Gentlemen:

During discussions concerning changes to the Technical Specifications for the Full Power License the Staff requested additional information and justification for a requested change to Specification 3.7.7 on control room habitability.

The requested change is attached.

The proposed change would allow emergency backup power for one train of dampers and fans to not be available in modes 5 and 6.

As currently written this specification would require entering an action statement in modes 5

and 6 to remove an Emergency Diesel Generator from service for maintenance.

This is not consistent with past Technical Specification practice.

This is also not consistent with Specification 3.8.1.2 which allows one diesel to be inoperable in modes 5

and 6.

It should be noted that while emergency-backup power may not be available the dampers and fans will still-be operable and powered from their normal power source similar to the philosophy used in Specification 3.0.5 for modes 1, 2, 3 and 4.

This approach for specifications which require two trains of equipment to be available in modes 5

and 6 has been applied to Technical Specification 3.9.8.2 and is consistent with the recently approved Beaver Valley Unit 1 amendment on control room habitability which contains a similar footnote.

I DUQUESNE LIGHT COMPANY f

I M

8707150330 07070s PDR ADOCK 05000412 By

//

P PDR JL/ (./ Carey f/ )

Senior Wce President RTZ/slp Attachment AR/NAR l

cc: Mr.

P. Tam, Project Manager (w/a) l l

l Mr. J. Beall, NRC Sr. Resident Inspector (w/a)

Ill Mr.

L. Prividy, NRC Resident Inspector (w/a)

INPO Records Center-(w/a)

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