ML20070L633
| ML20070L633 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 12/29/1982 |
| From: | Hancock J FLORIDA POWER CORP. |
| To: | Eisenhut D Office of Nuclear Reactor Regulation |
| References | |
| 3F-1282-25, GL-81-12, TAC-49336, NUDOCS 8301030224 | |
| Download: ML20070L633 (3) | |
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December 29,1982 3F-1282-25 Mr. Darrell G. Eisenhut, Director Division of Licensing Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555
Subject:
Crystal River Unit 3 Docket No. 50-302 Operating License No. DPR-72 Generic Letter 81-12 on Fire Protection
Dear Mr. Eisenhut:
Florida Power Corporation requests an exemption to the requirements of the second paragraph of Section III.G.3.b of Appendix R to 10CFR50 which states, "In addition, fire detection and a fixed fire suppression system shall be installed in the area, room, or zone under consideration." Florida Power has installed a fire detection system in the Control Room but will not install a fire suppression system.
Our fire protection plan for the Contro! Room remains as described in our Fire Protection Program Review for Crystal River Unit 3, submitted to you in June 1977. The description is as follows:
CRYSTAL RIVER UNIT 3 FIRE SAFETY EVALUATION Ogb Control Complex Control Room Elevation 145'0" (Safety-Related)
Area / Zone 5 Area / Zone Description The control room is bounded by three-hour-rated fire walls and fire doors separating it from the remainder of the plant. Safety-related cable trays in the room are widely separated. A small amount of cabling which terminates in the control room is concealed above the ceiling. The rear of the control board is open which will allow a fire condition in cabinet wiring to be detected by installed detectors.
Personnel constantly occupy the room and in the event the control room is uninhabitable, the plant can be shutdown from outside the control room.
8301030224 821229 PDR ADOCK 05000302 F
PDR General Office 320 Tnirty-fourtn street south. P O Box 14042. St Petersburg. Florda 33733 813-866-5151
Mr. Darrell G. Eisenhut December 29,1982 Page 2 Major Equipment Control Board ANN / Events Recorder NI&P Cabinets ICS and NNI Cabinets Engineer Safeguards Actuation Computer Typewriter, Line Printer Relay and Channel Cabinets and Cabinets Fire Cabinets Radiation Monitoring Console Maximum Combustible Material Quantity Fire Load Fire Severity Cable Insulation 8 ft3 2,100 Bru/ft2 17 min Paper 60 ft3 3,600 Btu /ft2 Cabinet and Console 63 ft3 17,000 Btu /ft2 Cable Insulation Fire Protection Automatic fire detection is provided for the control room area with nine POC detectors and one heat detector. Three 25-lb Type ABC portable extinguishers (Station C5-2, -4, -5) are provided with three additional extinguishers stored in the corner of the room. Fire stops are provided for the cable trays and ventilation system fire dampers are provided. Fire indication panels are present in the room for plant fire protection systems with remote operational capability for various systems.
i Postulated Fire Ignition of cabinet wiring or stored paper.
Consequence of Fire Without Active Protection A fire condition in the control room could cause uninhabitable conditions, but in which case the reactor could be safely shutdown from remote stations. Spread of fire from the area is prevented by three-hour-rated fire walls, doors, cable tray fire stops and ventilation system fire dampers. Since this area is continually occupied by operating personnel, a fire condition would be promptly discovered, Consequence of Fire With Active Protection r
t Fire detection is present to pwvide prompt automatic detection of a fire condition.
Portable extinguishers are available throughout the room for manual fire fighting; if required, water hose can be brought in from the Turbine Building. Damage or uninhabitable conditions in the room due to fire or fire fighting does not prevent safety plant shutdown, since additional capability exists outside the control room.
_ r Mr. Darrell G. Eisenhut December 29,1982 Page 2 Your consideration of this exemption request is appreciated.
Ver tr
- yours,
.. A. Hancock Vice President Nuclear Operations WRK:mm cc:
Mr. 3. P. O'Reilly, Regional Administrator Office of Inspection & Enforcement U.S. Nuclear Regulatory Commission 101 Marietta Street N.W., Suite 3100 Atlanta, GA 30303 i
..