ML19323E380
| ML19323E380 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 05/20/1980 |
| From: | Heider L VERMONT YANKEE NUCLEAR POWER CORP. |
| To: | Ippolito T Office of Nuclear Reactor Regulation |
| References | |
| WVY-80-79, NUDOCS 8005230466 | |
| Download: ML19323E380 (2) | |
Text
.
s VERMONT YAN KEE NUCLEAR POWER CORPORATION 1
J SEVENTY SEVEN GROVE STREET B.3.2.1 RUTLAND, VERMONT 05701 hYY 80-79 REPLY TO:
ENGINEERING OFFICE TURNPIKE RO AD WESTBORO, M ASS ACHUSETTS 01581 May 20, 1980 T E'5"H o " E * ' 7 2 5 5-$ o ' '
United States Nuclear Regulatory Commission Washington, D. C.
20555 Attention: Office of Nuclear Reactor Regulation Thomas A. Ippolito, Chief Operating Reactors Branch #2 Division of Licensing
References:
(a)
License No. DPR-28 (Docket No. 50-271)
(b) USNRC Letter dated January 13, 1978,
Subject:
Amendment 43 to Facility Operating License (c) USNRC Letter dated April 15, 1980,
Subject:
Supplemental Fire Protection Safety Evaluaticn
Dear Sir:
Subject:
Fire Prctection Program Information Vermont Yankee has reviewed the NRC staff's requirements contained in the enclosure to reference (c) above. Our responses follow here:
3.1.4.
Water Suppression Area Cable Penetration Area a.
A single failure in the system will not affect our ability to provice manual fire protection in the area. An effective hose stream is available from the redundant standpipe in the Reactor Building, b.
As stated in our letter hVY 78-57, dated June 14, 1978, we have done testing to insure that the detectors used in the plant are responsive to the types of fires expected in the area where they are installed. This includes the Cable Penetration Area.
8005 230 Nk y
o United States Nuclear Regulatory Commission May 20, 1980 Office of Nuclear Reactor Regulation Turbine Laydown Area a.
The deluge system that was installed in this area was in response to a specific NRC staff concern of the responsibility of motor vehicle fires in the area, as referenced in the Fire Protection SER, Section 5.11.6.
The detectors in this area are of a type well-suited to detect the type of fire one might expect from motor vehicles.
Diesel Fire Pump Sprinkler System We will provide a water flow switch with annunciation a.
and alarm in the control room by November 1,1980.
b.
This system is currently designed cnd installed in compliance with this position.
3.1.14 Air Breathing Appatetus We will provide a six hour air supply for the self contained breathing apparatus units furnished for control room personnel November 1, 1980.
3.2.3 Fire Water Loop Vermont Yankee has furnished to you two lengthy descriptions and results of calculations that indicate that the existing yard fire loop feeds will not be affected by the type of break proposed by the staff (WVY 78-11, Jan. 30, 1978 and WVY 79-104, Sept. 14, 1979). We have received no acknowledg-ment that these analyses were reviewed, and no indication of why the NRC believes our analyses are inadequate. We have received only a repeated statement that "we will require that the fire mains which feed the yard loop and are in close proximity be separated..." We continue to feel that the staff's concern is unfounded, and do not intend to make changes in the routing of thost two feeds.
In addition, please note that ANS/ ANSI standard 59.4 is a recent standard, and has not been referenced in any Vermont Yankee licensing submittals as being one that we have designed to.
We trust that our responses to the staff requirements are adequate.
If these are any further questions or c'omments, please contact us.
Very truly yours, VERMON YANKEE NUCLEAR PC17.R CORPORATION d4b L. H. Heider Vice President RLS/smw