IR 05000346/1985028
| ML20207K026 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 12/31/1986 |
| From: | Stolz J Office of Nuclear Reactor Regulation |
| To: | Williams J TOLEDO EDISON CO. |
| References | |
| NUDOCS 8701090184 | |
| Download: ML20207K026 (4) | |
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Pocket No. 50-346 December 31, 1986
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Mr. Joe Williams, Jr.
Senior Vice President, Nuclear Toledo Edison Company Edison Plaza - Stop 712 300 Madison Avenue
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Toledo, Ohio 43652
Dear Mr. Williams:
SUBJECT:
FIRE TEST REPORTS ON PENETRATION SEALS - STATUS OF-EVALUATION By letter dated June 25, 1986 (No. 1267) Toledo Edison Company submitted test
documentation and a sunnary of the applicability of that documentation to the Davis Besse Nuclear Power Station penetration seals. This documentation was submitted for NRC review to resolve concerns with regard to the adequacy of the test documentation to support the fire rating of the penetration seals.
These concerns are discussed in Inspection Report 50-346/85028 issued November
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22, 1985, and Inspection Report 50-346/86006 issued February 28, 1986.
We evaluated the fire test reports you submitted to determine the following:
1.
Was the test conducted in accordance with standard fire test procedures?
2.
Did the results of the test confirm that the seal assembly tested met the guidelines contained in Appendix A to BTP APCSB 9.5-1?
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Was adequate justification provided where deviations from the above guidelines existed?
4.
Were the fire-tested seal assemblies similar to seals found in the plant?
5.
Were the tests conducted by an independent testing laboratory?
Based on our review, we have determined that the following in-plant seal assemblies could be considered acceptable provided that additional information of a confirmatory nature be provided:
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3A
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DB-2,5,6
FB-1,2,4 For these seals the following information is required:
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Certify that fire test 748-178 was performed by an independent laboratory.
Confirm that the conduits are sealed internally per the design detail.
- Confirm that the materials tested, including the "M-Board", are the same as that found in the plant.
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Justify the cold side temperature readings in-terms of cable I
combustibility and in-situ combustible ignitability.
Based on our review, we have concluded that the fire test reports submitted
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for the following in-plant seal assemblies do not confirm that these seals comply with the guidelines in Appendix A to BTP APSCB 9.5-1:
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1A
9A
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5
i 2A
Therefore, these seals should be considered " degraded" per the plant technical specifications.
Implementation of a fire watch in areas containing these
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latter seals per the action statement of the technical specifications provides i
adequate compensatory protection until these seal assemblies are in
conformance with the above-referenced staff guidelines.
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We have previously discussed the above information with your staff in a telephone conference call on September 9, 1986.
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Please provide the confirmatory information requested no later than February 16,
1987, along with your proposed schedule for corrective action for those seals l
which do not conform with the quidelines of Appendix A to BTP ASCSB 9.5-1.
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Sincerely, l
/S/
John F. Stolz, Director PWR Project Directorate #6 Division of PWR Licensing-B l
cc: See next page
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Distribution:
Docket File i
NRC & L PDRs
Branch Files ACRS
OGC-Bethesda
RIngram
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Edordan GEdison
- See previous white for concurrences
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PWR#6*
PWR#6*
PWR#6*
ADeAgazio GEdison JStolz 12/15/86 12/15/86 12/15/86
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2-Justify the cold side temperature readings in terms of cable combustibility and in-situ combustible ignitability.
Based on our review, we have concluded that the fire test reports submitted for the following_in-plant seal assemblies do not confirm that these seals comply with the guidelines in Appendix A to BTP APSCB 9.5-1:
'
3
1A
9A
5
2A
Therefore, these seals should be considered " degraded" per the plant technical i
j specifications.
Implementation of a fire watch in areas containing these
latter seals per the action statement of the technical specifications provides adequate compensatory protection until these seal assemblies are in conformance with the above-referenced staff guidelines.
Please provide the confirmatory information requested no later than January 30, 1987, along with your proposed schedule for corrective action for those seals which do not conform with the guidelines of Appendix A to BTP ASCSB 9.5-1.
Sincerely, l
John F. Stolz, Director PWR Project Directorate #6 Division of PWR Licensing-B cc: See next page Distribution:
Docket File NPC & L PDRs Branch Files ACRS OGC-Bethesda RIngram
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ADeAgazio DKubicki BGrimes JPartlow
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EJordan GEdison
AhV PWR#6 [ [ GEdijs n
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PWR#6 PWR, ADeAgatio JStol
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Mr. Davis-Besse Nuclear Power Station Toledo Edison Company Unit No. 1
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Donald H. Hauser, Esq.
Ohio Department of Health The Cleveland Electric ATTN:
Radiological Health Illuminating Company Program Director P. O. Box 5000 P. O. Bnx 118 Cleveland, Ohio 44101 Columbus, Ohio 43216 Mr.-Robert F. Peters Attorney General Manager, Nuclear Licensing Department of Attorney Toledo Edison Company General Edison Plaza 30 East Broad Street 300 Madison Avenue Columbus, Ohio 43215 Toledo, Ohio 43652 Mr. James W. Harris, Director Gerald Charnoff, Esq.
(Addressee Only)
Shaw, Pittman, Potts Division of Power Generation and Trowbridge Ohio Department of Industrial Relations 2300 N Street N.W.
2323 West 5th Avenue Washington, D.C. 20037 P. O. Box 825 Columbus, Ohio 4??16 Mr. Paul V. Smart, President Mr. Harold Kohn, Staff Scientist Toledo Edison Company Power Siting Commission 300 Madison Avenue 361 East Broad Street Toledo, Ohio 43652 Columbus, Ohio 43?l6 Mr. Robert B. Borsum President, Board of Babcock & Wilcox County Commissioners of Nuclear Power Generation Ottawa County Division Port Clinton, Ohio 43452 Suite 200, 7910 Woodmont Avenue Bethesda, Maryland 20814 State of Ohio Public Utilities Commission Resident Inspector 180 East Broad Street U.S. Nuclear Regulatory Commission Columbus, Ohio 43266-0573 5503 N. State Route 2 Oak Harbor, Ohio 43449 Regional Administrator, Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137
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