ML19323A194

Advises That 800131 Proposed Design Basis Re Addl Smoke Detectors for Control Room & 1-h Fire Rated Barrier Meet Guidelines & Are Acceptable

ML19323A194
Person / Time
Site:	Beaver Valley
Issue date:	04/04/1980
From:	Schwencer A Office of Nuclear Reactor Regulation
To:	Dunn C DUQUESNE LIGHT CO.
References
TAC-11111, NUDOCS 8004180045
Download: ML19323A194 (2)

Text

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'*d.. * *g APR 0 41980 Docket No. 50-334 Mr. C. N. Dunn, Vice President Operations Division Duquesne Light Company 435 Sixth Avenue Pittsburgh, Pennsylvania 15219

Dear Mr. Dunn:

By letter dated January 31, 1980, Duquesne Light Company provided information regarding the installation of smoke detectors in the walk through section of the vertical panels of the Control Room and the installation of a fire barrier to separate the Control Room from the adjacent kitchen area.

We have reviewed the smoke detectors design details and have determined that the proper design basis has been selected regarding their installation.

Initially, we found that the proposed fire barrier design for the kitchen area to be unacceptable. However, after discussions with your staff, it is our understanding that Duquesne Light Company has committed to modify the barrier design by protecting all openings and installing an automatic listed door closure, so that the barrier will qualify as a one-hour fire rated barrier. This modification will be completed prior to the plant returning to power operation. We have determined that this commitment to provide a one-hour fire barrier, as described above, is adequate and meets the recommendation of Section F(2) of.BTP APCSB 9.5-1, Appendix A.

Based on the above discussion, we conclude that Duquesne Light Company's proposed design basis regarding additional smoke detectors for the walk through section of the vertical panels of the Control Room and the one-hour fire rated barrier to be installed to separate the Control Room from the adjacent kitchen area before the plant returns to power operation meet our guidelines and, therefore, are acceptable.

Sincerely,

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A. Schwencer, Chief Operating Reactors Branch #1 Division of Operating Reactors cc: See next page oss x

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7 ; ;g;3 Mr. C. N. Dunn Duquesne Light Company cc

Gerald Charnoff, Esquire Mr. James A. Werling Jay E. Silberg, Esquire Plant Superintendent Shaw, Pittman, Potts and Trowbridge Beaver Valley Power Station 1800 M Street, N.W.

P. O. Box 4 Washington, D. C.

20036 Shippingport, Pennsylvania 15077 Karin Carter, Esquire Mr. John A. Levin Special Assistant Attorney General Public Utility Commission Bureau of Administrative Enforcement P. O. Box 3265 Sth Floor, Executive House Harrisburg, Pennsylvania 17120 Harrisburg, Pennsylvania 17120 Mr. J. D. Sieber, Superintendent Mr. Roger Tapan of Licensing and Compliance Stone and Webster Engineering Duquesne Light Company Corporation Post Office Box 4 P. O. Box 2325 Shippingport, Pennsylvania 15077 Boston, Massachusetts 02107 Mr. F. Noon R & D Center Westinghouse Electric Corporation Building 7-303 Pittsburgh, Pennsylvania 15230

8. F. Jones Memorial Library 663 Franklin Avenue Aliquippa, Pennsylvania 15001 Mr. John Carey, Director Nuclear Operations Duquesne Light Company 435 Sixth Avenue Pittsbu rgh, Pennsylvania 15219 Mr. R. E. Martin Duquesne Light Company 435 Sixth Avenue Pittsburgh, Pennsylvania 15219 Marvin Fein Utility Counsel City of Pittsburgh 313 City-County Building Pittsburgh, Pennsylvania 15219 6

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