ML20041B030
| ML20041B030 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 02/17/1982 |
| From: | Heider L VERMONT YANKEE NUCLEAR POWER CORP. |
| To: | Eisenhut D Office of Nuclear Reactor Regulation |
| References | |
| FVY-82-13, GL-81-12, NUDOCS 8202230186 | |
| Download: ML20041B030 (2) | |
Text
VERMONT YAN KEE NUCLEAR POWER CORPORATION SEVENTY sEVEN GROVE STREET o
2.C.2.1 RUTLAND, VERMONT 05701 FVY 82-13 REPLY TO:
ENGINEERING OFFICE 1671 WORCESTER ROAD FR AMINGH AM. M ASSACH USETTS c1701 TELEPHONE 617 872 8100 February 17, 1982 V
Oh 9
United States Nuclear Regulatory Commission RECEIVED Washington, D. C.
20555 E.
FEB 2 21982* ~5 Attention:
Office of Nuclear Reactor Regulation E m WWawassee Mr. D. G. Eisenhut, Director SMIE thai 3EE R y
Division of Licensing s
References:
(a) License No. DPR-28 (Docket No. 50-271) to (b) Letter, USNRC to All Power Reactor Licensees with Plants Licensed Prior to January 1, 1979, dated February 20, 1981 (Generic Letter 81-12)
Subj ect: Request for Exemption
Dear Sir:
The purpose of this letter is to request an exemption from the requirements of Appendix R,Section III.G.3.6, last sentence, with reference to the Control Room.
Vermont Yankee interprets this sentence to require installation of both detection and suppression systems in the Control Room even though we have the capability to shut down the plant from outside the Control Room.
Vermont Yankee believes that it is neither prudent nor necessary to install a fixed suppression system in the Control Room and hereby requests an exemption from that requirement in accordance with 10CFR50.12.
Our basis for such an exemption is outlined as follows:
1.
The Control Room is a continually manned area, thus aiding in the quick detection of any fire.
2.
Smoke detectors are provided throughout the room and inside control cabinets.
3.
All electrical penetrations into the room are sealed. Fire dampers have been provided on ventilation lines.
4.
The fire loading in the Control Room is low.
There is strict control over the use of any flammable materials.
The problem with transient combustibles is low, as there is no need for them to go through the Control Room.
8202230186 820217 Oh 4
PDR ADOCK 05000271 F
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. United States Nuclear Regulatory Commission February 17,-1982 Attention:
Mr. D. G. Eisenhut Page 2 5.
Portable extinguishers within the control room provide sufficient capability.to handle any incipient fire.
Fire hoses and additional extinguishers are available outside the Control Room if ' they are needed.
-6.
The installation of a fixed suppression system could decrease overall safety rather than increase it.
In-
. advertent operation' of any known suppressant, including Halon 1301, could cause equipment damage as in the case of water or make it necessary for personnel, to evacuate the room, as in the case of CO2 and Halon.
We believe that the information provided above forms an adequate. basis for our request for exemption. We trust that this information will allow you to act on our request;in a timely.. fashion. If you have any need for further information, please contact us.
Very truly yours, VERMONT YANKEE NUCLEAR POWER CORPORATION
/dY d'h 1/
'E.
H. Heider Vice President I
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