ML17277B487

Forwards Safety Evaluation Re Fire Protection Program Concerning Replacement of Vinyl Asbestos Tiled Control Room Floor Covering W/Carpeting

ML17277B487
Person / Time
Site:	Columbia
Issue date:	08/24/1984
From:	Schwencer A Office of Nuclear Reactor Regulation
To:	Sorensen G WASHINGTON PUBLIC POWER SUPPLY SYSTEM
References
NUDOCS 8409040381
Download: ML17277B487 (5)

Text

I Docket No. 50-397 AUG 2 g

~ggy 840904038i 840824

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@DOCK 05000397 F

PDR Mr. G.

C. Sorensen, Manager Regulatory Programs Washington Public Power Supply System P. 0.

Box 968 3000 George blashington Way Richland, llashington 99352

Subject:

IlNP-2 Fire Protection Program In a letter dated July 17, 1984, the Supply System indicated the desirability of replacing the vinyl asbestos tiled control room floor covering with carpeting.

The staff was concerned that the carpet might represent a

significant fire hazard from the standpoint of overall flammability and the potential for smoke production, if ignited.

The staff has completed its review of your July 17, 1984 submittal and concludes that the installation of the carpet will not significantly decrease the level of fire safety in the control room and this deviation is acceptable.

A copy of our safety evaluation is enclosed.

Please call R. Auluck, Project Manager, if you desire a discussion or clarification.

Sincerely,

Enclosure:

As stated A. Schwencer, Chief Licensing Branch No.

2 Division of Licensing cc:

See next page uck AS hwencer 15/84 8/ 5/

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Hr. G. C. Sorensen, Hanager Regulatory Programs Mashington Public Power Supply System P. 0. Box 968 3000 George Washington Way Richland, Washington'-

99352 CC:

Nicholas Reynolds, Esquire

Bishop, Cook, Liberman, Purcell 5 Reynolds 1200 Seventeenth

Street, H.

M.

Washington, D. C.

20036 Hr. G. E. Doupe, Esquire Washingtm Public Power Supply. System P. 0.

Box 968 3000 George Mashington May

Richland, Washington 99352 Nicholas Lewis, Chairman Energy Facility Site Evaluation Council Hail Stop PY-ll Olympia, Washington 98504 P. L. Powell, Licensing Hanager Washingtcn Public Power Supply System P. 0.

Box 968

Richland, Washington 99352 Hr. M. G. Conn, Sr. H/H Group Supervisor Burns and

Roe, Incorporated

$ 1 Williams Boulevard

Richland, Washington 99352 R. B. Glasscock, Director Licensing and Assurance Washington Public Power Supply System P. 0.

Box 968, HD 650

Richland, Washington 99352 Nr. J.

D. Hartin MHP-2 Plant Hanager Washington Public Power Supply System P. 0.

Box 968

Richland, Washington 99352

Supplemental Safety Evaluation WPPSS Nuclear Project No.

2 Docket. No. 50-397 9.5.1 Fire Protection Program In the SER and in Supplement No.,5 to the SEg, the staff.evaluated fire protection in the Control Room Complex.

By letter dated July 17, 1984, the license requested approval for the installation of carpeting in the control room so as to:

(1) reduce background noise; (2) enhance ambience and comfort, (3) minimize fatigue of personnel; and (4) improve overall control room appearance.

The staff was concerned that the carpet might represent a significant fire hazard from the standpoint pf overall flammability and the potential for smoke production, if ignited.

In the July 17, 1984 letter, the licensee provided the results of fire tests on the proposed carpet which demonstrated that it represents no greater fire hazard than the previously approved vinyl

.asbestos tile that it will replace.

Specifically, the Critical Radiant Flux was determined to be 1.01 watts per square centimeter as determined by the test method in ASTM E-648, which enables the carpet to be considered as a

Class I interior finish.

The smoke development rating of the carpet was determined to be less than 250, as determined by the test method in ASTH E-662.

This compares to a flaming smoke development of 325 for vinyl asbestos tile.

The staff concludes that the installation of the carpet will not significantly decrease the level of fire safety in the control room and, therefore, represents an acceptable deviation from Section G.7.b of BTP CMEB 9.5-1.

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