ML20080F310
| ML20080F310 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 09/07/1983 |
| From: | Nix H GEORGIA POWER CO. |
| To: | Stolz J Office of Nuclear Reactor Regulation |
| References | |
| NED-83-471, TAC-45950, TAC-45951, TAC-46021, TAC-46022, TAC-46093, TAC-46094, TAC-46309, TAC-46310, NUDOCS 8309190261 | |
| Download: ML20080F310 (1) | |
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Power Generation Department NED-83-471 September 7, 1983 Director of Nuclear Reactor Regulation Attention: Mr. John F. Stolz, Chief Operating Reactors Branch No. 4 Division of Licensing U. S. Nuclear Regulatory Commission Washington, D. C.
20555 NRC DOCKETS 50-321, 50-366 OPERATING LICENSES DPR-57, NPF-5 EDWIN I. HATCH NUCLEAR PLLNT UNITS 1, 2 RESPONSE REGARDING EMERGENCY OPERATING FACILITY'S VENTILATION ISOLATION Gentlemen:
Recently the NRC Licensing Project Manager inquired as to whether the ventilation system for the Emergency Operating Facility (EOF) at Plant Hatch could be isolated from sources of outside air.
We herein submit our response to that question.
The EOF ventilation system is designed to maintain the EOF at a slightly positive pressure to prevent in-leakage through unsealed passages such as doorways.
Consequently, some outside make-up air is required.
This make-up consists of something between five and ten percent of the total flow and is taken from the outside atmosphere.
During accident conditions when the EOF is functioning, this poi. ion of outside air is routed through filters for canditioning.
Therefore, since the EOF ventilation system design is based upon use of a source of air for pressurization, it does not provide for isolation from sources of outside air.
If you require further clarification or details, please contact this office.
Very truly yours, H. C. Nix, J.
General Manager WEB /mb xc:
J. R. Jordan T. V. Greene J. P. O'Reilly (WC-Region II) r Lkf Senior Resident Inspector Jr q
P. D. Rice li 0 9309190261 830907 PDR ADDCK 05000321 F
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