ML20115B039
| ML20115B039 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 10/06/1992 |
| From: | Sieber J DUQUESNE LIGHT CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| IEB-92-001, IEB-92-1, NUDOCS 9210150248 | |
| Download: ML20115B039 (3) | |
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aver Va ley Powe* Station g
SNppmoport. PA 1$077M (4:2) 393-5255 JOHND StCDER Vce Prstiderit. Nsclear Oroup October 6, 1992 U.
S.
Nuclear Regulatory Commission Attn:
Document Control Desk Washington, DC 20555
Subject:
Beaver Valley Power Station, Unit No. 1 and No. 2 BV-1 Docket No. 50-334, License No. DPR-66 BV-2 Docket No. 50-412, License No. NPF-73 NRC Dulletin 92-01, Supplc=ent No. 1 Provided is e
response to NRC Bulletin 92-01, Supplement 1,
" Failure of Thermo-Lag 330 Fire Barrier System to Perform Its Specified Fire Endurance Function."
This supplement expands the scope of the bulletin's action requirements to include cable trays and conduits regardless of size, as well as walls, ceilings, and equipment enclosures where Thermo-Lag fire barriers have been used for the protection and separation of the safe shutdown capability.
As previously identified in our original response to NRC.
Bulletin 92-01, dated July 29, 1992, there are nine (9) fire areas at Beaver Valley Pow 2r Station (BVPS) Unit 2 where TSI Thermo-Lag.
fire barrier material is used on small size conduit'to protect cables to meet the requirements of Section III-G of Appendix R to 10 CFR 50.
Our amended submittal of August 26, 1992, identified the compensatory measures taken in the form of hourly fire watch patrols for the affected areas.
Based on the supplement, four additional fire areas at BVPS Unit 2
and one fire area at BVPS Unit 1 have been added to the list of subject fire areas that are affected by this Bulletin.
Fire barriers in the affected areas were declared potentially
-inoperable, and one-hour fire watch patrols were instituted on at least one side of the affected barrier on September 3, 1992.
These actions are consistent with our existing fire protection program for fire areas that are provided with automatic detection.
.These fire watch patrols are an interim measure until such time as permanent corrective measures can be implemented.
Appropriate actions to restore fire barrier, operability are being developed.through an industry program being coordinated by NUMARC.
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PDR ADOCK 05000334
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e NRC Bulletin 92-01, Supplement No.-1 ND3NSM 5773-Page 2-In addition to the compensatory measures described above, our-fire protection program requires a special-report-to-the NRC.if the subject fire barriers are not restored to operability within 7 days.
Because this Bulletin response discusses the. subject fire
- barriers, the compensatory actions taken, and the planned actions for restoration-of fire barrier' operability, this response fulfills the requirement for a special report.
Should you have any questions concerning this response,fplease contact John Maracek at (412)' 393-5232.
Sincerely,.
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Sieber cc:
Mr.
L.
W.
Rossbach, Sr. Resident Inspector.
Mr.
T. T.
Martin, NRC Region I Administrator Mr. A.
W.
De Agar.io, Project Manager Mr.
M.
L. Bowling (VEPCO)
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COMMONWEALTH OF PENNSYLVANIA)
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SS:
COUNTY OF BEAVER
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. f7Ifibw; On this b'.
day of'
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- 1992,
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me,[P
(((*9 I// M/? b 62f,'a Notary Public in and for said before CommonwealtN and County, personally appeared J. D.
Sieber, who being-duly sworn, deposed,_and said that (1) he is Vice President - Nuclear
- of Duquesne Light, (2) he is duly authorized to execute.and file the foregoing Submittal on behalf of said Company, and (3) the statements set. forth in the submittal are true and correct to the best of his knowledge, information and belief.
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