ML20106H483
| ML20106H483 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 02/11/1985 |
| From: | Edelman M CLEVELAND ELECTRIC ILLUMINATING CO. |
| To: | Youngblood B Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8502150320 | |
| Download: ML20106H483 (2) | |
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F THE CLEVELAND ELECTRIC iLLUiu;NMiNG C0mPANY P.o. box 5000 - CLEVELAND, OHIO 44101 - TELEPHONE (216) 622-9800 - lLLUMINATING BLDG. - 55 PUBLICSoVARE Serving The Best Location in the Nation MURRAY R. EDELMAN vicE PRES 10ENT February 11, 1985 NUCLEAR PY-CEI/NRR-0182 L Mr. B. J. Youngblood, Chief Licensing Branch No. 1 Division of Licensing U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Perry Nuclear Power Plant, Unit 1 & 2 Docket Nos. 50-440; 50-441 Portable Fire Extinguisher Technical Specification
Dear Mr. Youngblood:
This letter provides information to address the SER requirement, section 9.5.1.5.5 (p. 9-45, attached), for a Technical Specification for portable fire extinguishers.
Presently, all portable fire extinguishers at the Perry Plant have been assigned a unique number and have been listed by location. All portable fire extinguishers will be tested periodically in accordance with the Por!1ble Fire Extinguisher Monthly Inspection periodic test (PTI-P540006). In addi: ion, all portable extinguishers will be inspected yearly according to the Portable Fire Extinguisher Anneal Maintenance Inspection periodic test (PTI-0P540007).
The requirement for a Technical Specification related to por: able fire extinguishers does not presently exist in the Standard Technical Specirications. We feel that the Perry administrative controls will assure the avail ability of portable fire extinguishers.
We believe that this information is responsive to staff concerns and request the SER be changed to delete the requirement for a Technical Specification on portable fire extinguishers.
Very truly ours, d
p Murray R. Edelman Vice President Nuclear Group MRE:cje 8502150320 850211 PDR ADOCK 05000440 Attachment E
PDR ph cc: Jay Silberg, Esq.
p John Stefano (2)
, I; J. Grobe j
S. Brown
ATTACHMENT
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(6) Units.1 and 2 control room subfloors at elevation 654 ft -0 in. of the control complex.
Each control room subfloor is isolated into three main
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subsections, each protected by its own carbon dioxide system, (7) local application carbon dioxide systems: one for each of the four
. reactor recirculation pump motors (i.e., two each in Units 1 and 2 reactor buildings).
The diesel generator room, turbine-lube-oil tank rooms and turbine-lube-oil purifier rooms'present a surface-burning fire hazard and are protected by a minimum carbon dioxide concentration of 34% by volume 'in accordance with NFPA 12.
The computer rooms subfloors and the chart storage room systems are designed in accordance with NFPA 12 for the requirements of deep-seated fire hazards. The design concentration for the computer room subfloors is 50% by volume and for the chart storage room 65% by volume. The design concentration for the modular control room subfloor system is 50% by volume. The minimum design rate of application is based on achieving the design concentration for surface-burning
. fire hazards within 1 minute, and for deep-seated fires within 7 minutes with a 30% concentration within 2 minutes.
Each carbon dioxide system is provided with a selector valve including a pilot
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solenoid valve assembly and tria piping for control of carbon dioxide to the distribution piping and nozzles.
Local-application carbon dioxide extinguishing
_ _;____.._ __.-- systems are provided for the reactor recirculation pump motors. The entire recirculation pump motors, associated bearing oil system, and supports are considered the hazard for the subject design. The total discharge rate is based.
on the volume of an assumed enclosure entirely surrounding the hazard. Assumed
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wall and ceiling locations are 2 ft from the hazard. No deduction is made for the volumes occupied by equipment. The system design rate is 1 lb/ minute /ft3 of assumed volume, with a minimum discharge time of 30 seconds in accordance L
with NFPA 12. Each system has a selector valve and each valve is provided with a control unit. The system is automatic in operation, except for the motor-operated isolation valves which will be opened from the control' room. The staff has reviewed the design criteria and bases for the carbon dioxide fire-suppression systems and concludes that these systems are in accordance with the applicable portions of'NFPA 12.
3 Based on its review, the staff concludes that the carbon dioxide extinguishing systems meet the guidelines of BTP CMEB 9.5-1, Section C.6.e, and are, therefore, acceptable.
4 9.5.1.5.5 Portable Extinguishers Portable fire extinguishers have been provided in all areas of the plant in accordance with the guidelines of NFPA 10, except inside containment.- The applicant has committed to provide a complement of fire extinguishers, in accordance with NFPA 10, in permanent cabinets at the entrances to containment.
These extinguishers can be carried into containment during an emergency fire c
situation. A supply of extinguishers will be kept inside containment during maintenance operations. A Technical Specification will be established substan-
..tiating this commitment.
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3-Q A
Perry SER 9-45 7
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