ML17249A392
| ML17249A392 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 12/21/1979 |
| From: | White L ROCHESTER GAS & ELECTRIC CORP. |
| To: | Harold Denton, Ziemann D Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML17249A394 | List: |
| References | |
| NUDOCS 8001020543 | |
| Download: ML17249A392 (9) | |
Text
> RKGULATO INFORMAT'ION DISTRIBUTION STEM (RIDS)
ACCESSION NBR:8001020543 DOC ~ DATE+ 79/12/21 NOTARIZED:
NO FACIf;:50 244 Robert Emmet Ginna Nuclear PlantE Unit lP Rochester G
AOTH ~ NAME
'UTHOR AFFILIATION i'/HITE P L ~ D ~
Rochester (las 8
E, 1 ec t r i c Corp.
ABC IP ~ NAME RECIPIENT AFFILIATION DEN TOAD H ~ R, Off>ce of NucTear Reactor Regulation ZIEMANNrD,L.
Operating Reactors Branch 2
DOCKET 05000204 a ~V-4 O
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SUBJECT:
Forwards proprietary rept'Three H Fire Exposure Test Per ASTM'E 119 w/Hose StreamPQC Qualification Test of Normal Density CT-18 Silicone Foam Vs Light Density Silicone'Foam Co'mparion,"
Rept withheld (ref 10CFR2.790)
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TITLE: Fire Protec Info OL (Ltd 0 CYS)
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US le/TIDC/Distribution Services Branch Special Document Handling Requirements a 1.
Please use the following special distribution list for the attached document.
2.,
The attached document requires the -following special considerations:
Q Do not send oversize enclosure to the NRC PDR.
Q Only'ne oversize enclosure was received - please return for Regulatory File storage.
the cCRC PDR Q Other: (specify) cc:
DSB Files TXDC/DSB Authorized Signature
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ROCH ESTER GAS AND ELEC TRIC CORPORATION
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o 89 EAST AVENUE, ROCHESTER, N.Y. 14649 LEON D. WHITE. JR.
VICE PRESIDENT TELEPHONE AREA COOE TIII 546.2700 December 21, 1979 Director of Nuclear Regulation Attention:
Mr. Dennis L. Ziemann, Chief Operating Reactors Branch 42 Division of Operating Reactors U.S. Nuclear Regulatory Commission Washington, DC 20555
Subject:
Robert E. Ginna Nuclear Power Plant, Unit 1, Fire Protection Safety Evaluation Report, Section 3.2.5 (Electrical Cable Penetrations)
Dear Mr. Ziemann:
In accordance with your letter dated February 14, 1979 and the Fire Protection Safety Evaluation Report, dated February 14,
- 1979, RG&E has reviewed the applicability, to the Ginna Plant,, of the results of electrical cable penetration fire resistance tests which have been performed on materials and construction similar to those being used in the Ginna Plant.
Cable penetrations at R.E. Ginna Nuclear Plant were surveyed, and sealed in late 1975 by Brand Industrial Services, Inc.
(BISCO) using proprietary materials and methods.
The penetrations installed at that. time utilized BISCO SF-20 silicone foam.
The qualification of these seals is based on the following test reports.
Factory Mutual Research, Report 524963, August 5, 1975.
This test was performed on BISCO SF-20 silicone foam and radiation shielding penetration seals in masonry wall.
The test was performed in accordance with ASTM E-119 without, hose stream.
2.
Factory Mutual Research, Report 5 J.I.
1ASQ6.AC, May 10, 1978.
This test was performed on masonry floor seals constructed with BISCO SF-20 foam, ceramic fiber and Marinite XL
- panel, and cellular concrete.
The test was performed in accordance with ASTM E-119 and included hose stream test.
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ROCHESTER'GAS AND ELECTRIC CORP.
DATE December 21, 1979 To Mr. Dennis L. Ziemann SHEET NO.
The listed fire resistance tests are applicable to all penetration seals installed during the 1975 program, with the exception of the floor penetration seal located in the northwest corner of the relay room.
This fire barrier is not within the size range of the reported test, configurations
- above, and is being reviewed for qualification applicability.
Cable penetrations at R.E. Ginna were again surveyed in
- 1979, and all new cable penetrations and penetrations with damaged seals are being sealed by Chemtrol Corporation using proprietary methods and materials.
These seals are constructed with Chemtrol Corporation CT-18 silicone foam.
The qualification of these seals is based on the following reports; 1.
Factory Mutual Research, Report 5 26543, October 28, 1975.
This test was performed on silicone foam seals in floor penetrations.
The test was performed in accordance with ASTM E-119 without hose stream.
2.
Southwest Research Institute, Report CTM-0200, January 17, 1979.
This test was performed on silicone foam seals in floor penetrations.
The test was performed in accordance with ASTM E-119 with a hose stream.
All penetrations being sealed in the current program are within the range of configurations in these reports.
The configurations of the cable tunnel entry ways are not within the scope of the reports referenced above.
These locations are being conceptually reevaluated in light of the required ASTM E-119 qualification.
Very truly yours, L. D.
Wh te, Jr.
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