ML20140B365
| ML20140B365 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek, Callaway  |
| Issue date: | 09/04/1981 |
| From: | Petrick N STANDARDIZED NUCLEAR UNIT POWER PLANT SYSTEM |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| SLNRC-81-87, NUDOCS 8109140162 | |
| Download: ML20140B365 (2) | |
Text
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U SNUPPS 9
Standardized Nuclear Unit 9
hb Power Plant System C
11h@
C 5 Choke Cherry Road y,g, sa#LE [gpg Rockville, Maryland 20850 (301) 869 8010 i
h Septeraber 4,1981
~M SLNRC 81-87 FILE:
0541 SUBJ:
CEB Review Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Conunission Washington, D.C.
20555 Docket Nos. STN 50-482, STN 50-483, STN 50-486
Dear Mr. Denton:
In discussions with Dr. Gordon Edison, NRC Project Manager for the SNUPPS applications, it was learned that an FSAR clarification was required for the Chemical Engineering Branch fire protection review.~
The enclosure to this letter is revised FSAR eage 9.5E-2 which provides the clar_ification and which will be incorporated in the next Revision to the SNUPPS FSAR.
Very truly yours, Nicholas A. Petrick RLS/mtk Enclosure cc:
J. K. Bryan UE D. F. Schnell UE G. L. Koester KGE D. T. McPhee KCPL W. A. Hansen NRC/ CAL T. T. Vandel NRC/WC l
T B109140162 830904 PDR ADOCK 05000482 A
r a
SNUPPS 10 CFR 50 Appendix R SNUPPS III.F Automatic Fire Detection Automatic fire and smoke Automatic fire detection systems shall detector systems are be installed in all areas of the plant provided throughout the that contain or present an exposure plant on the basis of the fire hazard to safe shutdown or safety-fire hazards analysis and related systems or components.
These consequences of specific fire detection systems shall be capable t
s A dls of operating with or without offsite power.
and specific locations is provided in Appendix 9.5B on an area-hy-area basis.
Certain areas which con-tain safety-related equip-ment, but have negligible amounts of combustibles and are separated from adjacent areas by 3-hour fire barriers, do not have automatic detectors.
The only such areas are l
auxiliary feedwater valve compartments, A-29 through A-32, RHR Heat Exchanger Rooms A-9 and A-10, and con-trol building corridor, C-35.
As indicated in Section 9.5.1.2, the fire detec-tion system is provided with a backup battery power supply.
The batteries are served by a battery charger that can be manually connected to the plant emergency ac power supply.
III.G Fire Protection of Safe Shutdown Capability FSAR Appendix 9.5B pro-v des an area-by-area 1.
Fire protection features shall analysis of the S M PS be provided for structures, power block that demon-systems, and components impor-strates that no single tant to safe shutdown.
These fire can prevent safe features shall be capable of shutdown.
limitir.g fire damage so that:
Redundant trains of sys-a.
One train of systems neces-tems required to achieve and sary to achieve and main-maintain hot standby are tain hot shutdown condi-separated by 3-hour-rated tions from either the fire barriers, or the equivalent provided by 9.5E-2