TXX-4545, Updates Util Re Max Allowable Time for Operator Action Following Control Room/Cable Spreading Room Fire, Concurrent W/Loss of Offsite Power.Safe Shutdown Equipment in UPS Room Operable More than 10 Minutes W/O Ventilation
| ML20135A310 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 09/04/1985 |
| From: | Counsil W TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | Noonan V NRC - COMANCHE PEAK PROJECT (TECHNICAL REVIEW TEAM) |
| References | |
| TXX-4545, NUDOCS 8509100095 | |
| Download: ML20135A310 (1) | |
Text
7 Log # TXX-4545 TEXAS UTILITIES GENERATING COMPANYFile # 10010 909.5
.o.1,.oi.
- r.
...... u.. m m.......
3 M O a 5?fn'A September 4, 1985 Director of Nuclear Reactor Regulation Attention: Mr. Vincent S. Noonan, Director Comanche Peak Project Division of Licensing U. S. Nuclear Regulatory Commission Washington, D.C.
20555
SUBJECT:
COMANCHE PEAK STEAM ELECTRIC STATION DOCKET N05. 50-445 AND 50-446 OPERATOR ACTION TO RESTORE UPS ROOM VENTILATION DURIhG A POSTULATED CONTROL ROOM / CABLE 3PREADING ROOM FIRE
Dear Mr. Noonan:
Texas Utilities letter TXX-4528 dated August 6,1985 stated that for a Control Room / Cable Spreading Room Fire, concurrent with a loss of offsite power, operator action to restore UPS room vent!1ation is required in less than ten minutes.
We have reviewed the qualification of the safe shutdown equipment contained in the UPS room and have determined that the equipment can operate for greater than ten minutes without ventilation.
Should you have any questions in this matter, please contact this office.
Very truly yours,-
Ti j
W. G. Counsil BSD/grr
%[
DOC F
- O A suvssson or rxxas ums. mss ut.acraic courant n
.