ML20102A272
| ML20102A272 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 07/20/1992 |
| From: | Feigenbaum T NORTH ATLANTIC ENERGY SERVICE CORP. (NAESCO) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| IEB-92-001, IEB-92-1, NYN-92101, NUDOCS 9207240170 | |
| Download: ML20102A272 (2) | |
Text
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M North La:3be74 Telephone (603)474 9521
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Facsimile (603)474 2987 Energy Service Corporation Ted c. Feigenbaum Senior Vice President and Chief Nuclear Officer N YN-92101 July 20,1902 United States Nuclear Regulatory Commission Washington, D.C.
20555 4.
Attention:
Document Control Desk
References:
(a)
Facility Operating License No. NpF-80 Docket N.
50 443 (b)
USNRC Bulletin No. 92 01, dated June 24, 1992, Tailure of Thermo-Lag 330 Fire Barrier Svstem to Maintain Cabling in Wide Cable Trays and Small Conduits Free from Fire Damage"
Subject:
Response to 14RC Bulletin No. 92 01 1
Gentlemen:
NRC Bulletin No. 92-01 discussed fire endurance testing failures associated with the Thermo Lag 330 fire barrier system, requested operating reactors using Thermo-Lag fire barriers to take specific actions, and required licensecs to provide a written response.
Thermo-Lag 330 fire barrier ystems are not utilized at Seabrook Station. Selected redundant safe shutdown circuits at Seabrook Station which are routed through common fire areas are enclosed in conduit and wranped with a 1-hour fire-rated wrt.p.
The conduit wraps are an approved 3M flexible endothermic wrap system. Inside Containment, stainless
-steel faced mat and stainless steel foil-tape are used. Elsewhere, aluminum faced mat and aluminum foil tape are used. The smallest fire rated wrt.pped conduit at Seabrook Station is one inch in diameter. Cable trays do not contain cables of redundant circuits requiring the protection of a fire b: trier system. Therefore, cable tra3s at Seabrook Station are not wrapped.
We trast that the above information provides the requested response to NRC Bulletin on this matter, please No. 92-01 for Scabrook Station.
Should you have any questions contact Mr. James M. peschel, Regulatory Compliance Manager at (603) 474-9521 extension 3772.
Very truly yours, s
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Ted C Feigenbaum TCF:GK/act l'
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United States Regulatory Commission J uly 20,1992 Attention:
Document Control Desk Page two STATE OF NEW 11 AMPhillR E Rockingham, ss.
July 20, 1992 Then personally appeared before me, the above named Ted C. Feigenbaum. being duly sworn, did state that he is Senior Vice President and Chief Nuclear Officer of the North Atlantic Ene.gy Service Corporation, that he is duly authoriecd to execute and file the foregoing information in the name and on the behalf of North Atlantic Energy Service Corporation and that the statements therein are true to the best of his knowledge and belief.
d'lYi At//f/h hfhf DJ WoMP M
Tracy Al DcCredico, Notary Public Ok My Commission Expires: Nctober 3,1995
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cc:
Mr. Thomas T. Martin Regional Adniinistrator U. S. Nuclear Regulatory Comminion Region I 475 Allendale Road King of Prussia, PA 19406 Mr. Gordon E. Edison, Sr. Project Manager Project Directorate 1-3
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Division of Reactor Projects U.S. Nuclear Regulatory Commission Washington, DC 20555 Mr, Noel Dudley NRC henior Resident inspector P.O. Box 1149 Seabrook, Nil 03874 J
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