ML19345E127
| ML19345E127 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 12/19/1980 |
| From: | Hoffman D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | Crutchfield D Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8012230275 | |
| Download: ML19345E127 (2) | |
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i Power A Company w%;w '
General Offices: 212 West Michigan Avenue, Jackson, MicMaan 49201 * (517) 788 4550 December 19, 1980 Director, Nuclear Reactor Regulation Att Mr Dennis M Crutchifeld, Chief Operating Reactors Branch No 5 US Nuclear Regulatory Co==ission Washington, DC 20555 DOCKET 50-155 - LICENSE DPR EIG ROCE POINT PLANT - REVISION TO TECHNICAL SPECIFICATIONS CHANGE REQUEST - CONTAINFENT SPRAY SYSTEM Consumers Power Company letter dated December 5,1960 requested a Technical Specifications change to allow implementation of plant modifications designed to mitigate the effect of steam pipe breaks inside containment (as reported in Licensee Event Report No 80-23, dated August 26, 1980). During further internal review of the analyses contained in Appendix C to our letter dated December 5,1980, an error was found which has resulted in our revision of Table 1.
The revised data as provided by the attached Appendix C, Table 1 (Revision 12/19/80) has not changed the conclusions previously stated.
Your continued cooperation in review of the requested change and the revised information contained herein is appreciated.
David P Hoffman (Signed)
David P Hoffman Nuclear Licensing Adm.nistrator CC Director, Region III, USNRC NRC Resident Inspector - Big Rock Point Attach =eni - 1 page 5
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4 APPENDIX C TABLE 1: CONTAINMENT AND CORE SPRAY FLOWS Containment Spray Steam Containment Core Spray Reactor Failure Break Drum Enclosure Pressure Nozzle Ring Pressure (Gpm)
(Gpm)
(Psig)
(Gpm)
(Gpm)
(Psig)
None Non-ECCS 64 67 10 363 270 70 Diesel /
Non-ECCS 66 70 10 292 70 Generator Fire Pump Non-ECCS 61 64 10 330 246 70 Backup Non-ECCS 62 66/137*
10 332 257 70 Cont Spray Valve None Nozzle 59 61 10 332 38 298 38 Fire Pump Nozzle 54 56 10 Backup Nozzle 55 59/119*
10 321 38 Cont Spray Valve l
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- Primary Spray / Backup Spray nu1280-0059b-43 Revision 12/19/80 i