ML17335A189
| ML17335A189 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 08/27/1998 |
| From: | Stang J NRC (Affiliation Not Assigned) |
| To: | Powers R INDIANA MICHIGAN POWER CO. |
| References | |
| GL-92-08, GL-92-8, TAC-M85538, TAC-M85539, NUDOCS 9808310265 | |
| Download: ML17335A189 (9) | |
Text
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.c. 2055&4001 August 27, 1998 Mr. Robert P. Powers, Senior Vice President Indiana Michigan Power Company Nuclear Generation Group 500 Circle Drive Buchanan, Ml 49107 1395
SUBJECT:
COMPLETION OF LICENSING ACTION FOR GENERIC LETTER 92-08, "THERMO-LAG330-1 FIRE BARRIERS," DATED DECEMBER 17, 1992, FOR DONALDC. COOK NUCLEAR POWER PLANT, UNIT NOS.
1 AND2, TAC NOS. M85538 AND M85539
Dear Mr. Powers:
By letters dated April 16, 1993 (AEP:NRC:0692CK), February 4, 1994 (AEP:NRC:0692CV),
September 28, 1994 (AEP:NRC:0692CZ), December 21, 1994 (AEP:NRC:0692DA), March 29, 1995 (AEP:NRC:0692DD), July, 17, 1996 (AEP:NRC:0692DK), December 27, 1996 (AEP:NRC:0692DB), May 21, 1997 (AEP:NRC:0692DM), Indiana Michigan Power Company responded to Generic Letter (GL) 92-08, "Thermo-Lag 330-1 Fire Barriers," dated December 17, 1992, and follow-up requests for additional information dated May 28, 1993, December 20, 1993, September 23, 1994, December 29, 1994, March 6, 1995, June 18, 1996, December 2, 1996, March 26, 1997, and August 25, 1997 in regard to Thermo-Lag 330-1 fire barriers installed at Donald C. Cook Nuclear Power Plant, Unit Nos.
1 and 2.
0 The U.S. Nuclear Regulatory Commission (NRC) staff has reviewed your letters. Your responses state that, with one exception, you no longer rely on Thermo-Lag as a fire-rated barrier to provide separation of redundant equipment.
This condition was achieved through a combination of plant-specific analyses and plant modifications.
Reevaluation of the analyses documented in the Cook Nuclear Plant safe shutdown capabilities assessment developed the technical bases to eliminate the need to protect redundant trains of safe shutdown circuits with fire barriers.
The elimination of the need for a fire-rated barrier was based on the function of the circuits protected and the availability of alternate means of achieving safe shutdown in the event of a fire. For affected areas where fire-rated barriers were still required, plant modifications were implemented to replace Thermo-Lag with a suitable alternative.
Additionally, you state that Thermo-Lag is credited as a fire-rated barrier to provide separation between fire areas in the Unit No. 1 and Unit No. 2 hot shutdown panel enclosures.
This installation has been specifically qualified through an application specific technical evaluation which was supported by field testing.
By letter dated December 27, 1996 (AEP:NRC:0692DB), you stated that all corrective actions for the resolution of the Thermo-Lag issues had been implemented at Donald C. Cook Nuclear Power Plant, Unit Nos.
1 and 2. On the basis of its review, the staff has determined that you have provided the information and performed the actions requested in GL 92-08 and the actions tracked by TAC Nos. M85538 and M85539 are complete.
98083%0265 980827 PDR ADQCK 050003l5 P
Robert P. Powers 2
Based on your May 12, 1995 (AEP:NRC:0692DF), March 20, 1997 (AEP:NRC:0692DL), and November 24, 1997 (AEP:NRC:0692DO) responses, however, there remain open issues involving ampacity derating of Thermo-Lag 330-1 that emerged as a result of the GL 92-08 review. The resolution of these ampacity derating issues is under review and tracked by TAC Nos,. MA3387 and MA3388.
You should retain all documentation related to the resolution of the concerns with Thermo-Lag 330-1 fire barrier systems for future NRC audits or inspections.
Ifyou have any questions regarding this matter, please contact me at(301) 415-1345.
Sincerely, Docket Nos: 50-315 and 50-316 cc: See next page John F. Stang, Jr.,
enior Project Manager Project Directorate III-3 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation
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Robert P. Powers Indiana Michigan Power Company CC:
Donald C. Cook Nuclear Plant Units 1 and 2 Regional Administrator, Region III U.S. Nuclear Regulatory Commission 801 Warrenville Road Lisle, IL 60532<351 Attorney General Department ofAttorney General 525 West Ottawa Street Lansing, Ml 48913 Township Supervisor Lake Township Hall P.O. Box 818 Bridgman, Ml 49106 U.S. Nuclear Regulatory Commission Resident Inspector's Office 7700 Red Arrow Highway Stevensville, Ml 49127 Jeremy J. Euto, Esquire 500 Circle Drive Buchanan, Ml 49107 Mayor, City of Bridgman P.O. Box 366 Bridgman, Ml 49106 Special Assistant to the Governor Room 1 - State Capitol Lansing, MI 48909 Drinking Water and Radiological Protection Division Michigan Department of Environmental Quality 3423 N. Martin Luther King Jr Blvd P.O. Box 30630 CPH Mailroom Lansing, Ml 48909-8130 Steve J. Brewer Indiana Michigan Power Company Nuclear Generation Group 500 Circle Drive Buchanan, Ml 49107 David A. Lochbaum Union of Concerned Scientists 1616 P Street NW, Suite 310 Washington, DC 20036-1495
Robert P. Powers August 27, 1998 Based on your May 12, 1995 (AEP:NRC:0692DF), March 20, 1997 (AEP:NRC:0692DL), and November 24, 1997 (AEP:NRC:0692DO) responses, however, there remain open issues involving ampacity derating of Thermo-Lag 330-1 that emerged as a result of the GL'2-08 review. The resolution of these ampacity derating issues is under review and tracked by TAC Nos. MA3387 and MA3388.
You should retain all documentation related to the resolution of the concerns with Thermo-Lag 330-1 fire barrier systems for future NRC audits or inspections.
Ifyou have any questions regarding this matter, please contact me at (301) 415-1345.
Sincerely, Original signed by:
Docket Nos: 50-315 and 50-316 cc: See next page
~O John F. Stang, Jr., Senior Project Manager Project Directorate III-3 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation Docket File A. Kugler B. Burgess R-III Public D. Oudinot PDIII-3 r/f OGC EGA1 ACRS DOCUMENT NAME:G:>DCCOOK<CO85538.LTR "See Previous Concurrence To receive a copy of this document, indicate I e bo C" ~ Copy without enclosures "E" ~ Copy with enclosures "N" ~ No copy OFFICE LA: PDI II-3 C
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Robert P. Powers August 27, 1998 Based on your May 12, 1995 (AEP:NRC:0692DF), March 20, 1997 (AEP:NRC:0692DL), and November 24, 1997 (AEP:NRC:0692DO) responses, however, there remain open issues involving ampacity derating of Thermo-Lag 330-1 that emerged as a result of the GL 92-08 review. The resolution of these ampacity derating issues is under review and tracked by TAC Nos. MA3387 and MA3388.
'ou should retain all documentation related to the resolution of the concerns with Thermo-Lag 330-1 fire barrier systems for future NRC audits or inspections.
Ifyou have any questions regarding this matter, please contact me at (301) 415-1345.
Sincerely, Original signed by:
Docket Nos: 50-315 and 50-316 cc: See next page John F. Stang, Jr., Senior Project Manager Project Directorate III-3 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation Docket File, A. Kugler B. Burgess R-III Public D. Oudinot PDIII-3 r/f OGC EGA1 ACRS DOCUMENT NAME:G:)DCCOOK(CO85538.LTR
- See Previous Concurrence To receive a copy of this document, indicate i e bo C" ~ Copy without enclosures "E" ~ Copy with enclosures "N" ~ No copy OFFICE LA: PDI II-3 C
NAME EBARNHILL DATE 08/9 1/98 II-3
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