ML19253B847
| ML19253B847 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 08/17/1978 |
| From: | Reid R Office of Nuclear Reactor Regulation |
| To: | Herbein J METROPOLITAN EDISON CO. |
| References | |
| NUDOCS 7910310599 | |
| Download: ML19253B847 (5) | |
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August 17, 1978 Docket NRC POR L PDR Docket No. 50-289
$8# Reading BGrimes/TCarter OELD
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TEee y-em RWReid Glainas Metropolitan Edison company GZwetzig ATTN: Mr. J. G. Herbein RIngram Vice President DEisenhut P. O. Box 542 TAbernathy Reading, Pennsylvania 19603 JBuchanan ACRS(16)
Gentlemen:
Gray file As a msult of our review of the Fire Protection Program at Three Mila Island Nuclear Station Unit No.1, we find we need additional cosmitments and infonnation in order to continue our review. The specific canitments and infonnation needed are listed in the enclosure.
You are requested to indicata your cour.!tment to these staff positions '
and to provide the requested information by telephone by August 17, 1978 with written confirmation submitted by August 22. 1978. A copy of the enclosure to this htter was transmitted to you by t'sesimile on
. August 11,1978.
Sincerely, Robert W. Reid. Chief Operating Reactors Branch f4 Division of Operating Reactors Enclnsure:
Request for Additional Information ec w/ enclosure:
See next page
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tietropolitan Edison Company cc:
G. F. Trowbridge, Esquire Shaw, Pittnan, Potts & Trowbridge 1800 f t Street, fl.W.
Washington, D.C.
20036 GPU Service Corporation Richard W. Heward, Pro,iect 'ianager fir. T. Gary Broughton, Safety and licensing flanager 260 Cherry Hill Roaa Parsippany, l'cw Jersey 07054 Pennsylvania Electric Company Mr. R. W. Conrad Vice President, Generation 1001 Broad Street Johnstown, Pennsylvania 15907 11iss llary V. Southard, Chairman Citizens for a Safe Environment P. O Box 405 Harrisburg, Pennsylvania 17108 Government Publications Section State Library of Pennsylvania Box 1601 (Education Building)
Harrisburg, Pennsylvania 17126 1505 186
REQUEST F0P ADDITI0t'AL IrlFORfkATI0tt AND C0!iMIT?iEN FIRE PROTECTION PROGRN1 THREE MILE ISLAfD MUCLEAR STATI0ft, UNIT N0.1 DC;KET NO. 50-289 1.
(Pin) Regarding the response to position P10, given in your letter of June 12, 1978, indicate your commitaant to provide mar tal hose rtations at each level inside the reactor building near the personnel air Icck, if the results of the study you have commited to provide by December 3!,1978 indicates this is possible.
In adoition, you should commit to provide equivalent protection from portable systems if the staff review of your study concludes that it is impractical to install hose stations inside containment.
2.
(P9,Pil) Regarding the responses to Positions P9 and Pil given in your letter of June 12, 1978, we do not understi.nd why these submittals cannot be made ea' ier than the indicated date of July 15,1979. Therefore, indicate your commitment to provide these submittals by February i5, 1979 or provide a detailed justification for submitting these studies at a later date.
3.
Indicate your commitment to demonstrate by July 1,1979, that all interior hose stations served by standpipes that are less than four inches in diameter (nominal pipe size) are capable of de-livering a minimum of 100 gpm at a residual pressure of 65 psig at the outlet of the hose station.
4.
(P5) Regarding the response to Position P5 given in your letters of June 12 and July 20, 1978, indicate your commitment that all fire doors except the two fire doors in series between the Turbine Building and the Control Building will, by January 1,1979, be electrically supervised, with a time delay alarm in a constantly occupied area, or will be locked closed.
5.
Indicate your commitment to remove stored combustibles from the Control Building, elevations 306' and 322', and other areas con-taining safety-related equipment and to keep su:h areas free of stored combustibles in the future.
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2-Indicate your comitment to repair the small air compressor diesel 6.
engines located in the diesel generator rooms to correct the present oil leakage.
Confirm your commitment to provide supervision for the presently 7.
unsupervised supply valve to the automatic water suppression system serving elevation 306' of the Control Building, and the supply valves to the autorratic water suppression systems in the two diesel generator rocms.
8.
Indicate your commitment to provide by December 31, 1978:
A list of the system (s) served by the cables routed through (a) the area between the fuel pool and the Control Building; and (b) An analysis demonstrating that a fire in this area would not affect the ability to safely shutdown the reactor.
9.
Because some of the redundant components of the Heating, Ventilating and Air Conditioning (HVAC) system serving the Control Building are situated in close proximity, there is the possibility.that a single fire could disable the system.
Indicate your commitment to provide the following by December 31, 1978:
(a) An analysis of the effect of loss of normal and emergency HVAC services on the ability to safely shutdown the reactor; (b)
If the above analysis indicates that such loss could preclude safe shutdown, an analysis of the susceptibility of the HVAC system to being disabled by a single fire; and (c) If indicated by (a) and (b) above, your proposed corrective action.
10.
Indicate whether safe shutdown of the reactor could be accomplished if there were an exposure fire involving the electrical (Engineered Safety Features Actuation) cabinets in Fire Zone CB-3C, and the circuitry and controls in these cabinets were disabled or in-accessible.
If the ability to achieve safe shutdown could be adversely affected, indicate your comitment to extend the auto-matic water suppression system in this area to provide coverage to the exterior of these cabinets and to provide spray shields to protect the interior of the cabinets from the effects of water spray from either fixed water suppression systems or manual hoses.
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3-Because prompt notification of the occurrence of a fire is 11.
important in as'.uring prompt control, indicate your commit-nent to provide for the Control Building, elevation 306',
either s fire del.ector which alarms in the Control Roon or a flow alarm in automatic suppression system for this area.
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