ML19259B435
| ML19259B435 | |
| Person / Time | |
|---|---|
| Site: | Zimmer |
| Issue date: | 02/08/1979 |
| From: | Borgmann E CINCINNATI GAS & ELECTRIC CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 7902090348 | |
| Download: ML19259B435 (4) | |
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THE CINCINNATI GAS & ELECTRIC COMPANY rT1" CINCIN N ATI. OHIO 4 52o1 E'. A. BoRG M AN N voce passiota..tmor=t tamo Docket No. 50-358 February 8, 1979 Mr. Harold Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C.
20555 RE:
WM. H. ZIMMER NUCLEAR POWER STATION -
UNIT 1 - AMENDMENT 84 - SUBMITTAL OF REVISICN 10 TO THE FIRE PROTECTION EVALUATION REPCRT Gentlemen:
The Cincinnati Gas & Electric Company on behalf of itself and as agent for Columbus and Southern Ohio Electric Company and The Dayton Power and Light Company hereby submits forty (40) copies of Revision 10 to the Fire Protection Evaluation Report for the Wm.
H.
Zimmer Nuclear Power Station - Unit 1 (ZPS-1).
Very truly yours, THE CINCINNATI GAS & ELECTRIC COMPANY
(
C cc-E. A. BORGMANN Vice President - Engineering Services and Electric Production EAB: dew cc: Charles Bechhoefer State of Ohio
)
Glenn O. Bright County of Hamilton) ss Frank F. Hooper Eworn to and subscribed before me this Troy B. Conner, Jr.
/g day of February,.1979.
James P. Fenstermaker Peter !!. Fcrster William J. Moran 171 1 rt r, Jr.
F
[) Notary Public James D. Flynn Thomas A. Luebbers 4.
.U!iLHOFER Stephen Schumacher
- i. dry i'- - 2m 01 CSa
"" "Y John D. Woliver 7 9 0 2 0 9 0 3yt
THE CINCINNATI GAS & ELECTIIIC COMPANY E. A. GOROMAN N vict set s.cs wr-rno =cte.no Docket No. 50-358 February 8, 1979 Mr. Harold Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washingten, D.C. 20555 RE:
WM. H. ZIMv2R NUCLEAR PCWER STATICN -
UNIT 1 - AMENDMEI'T 84 - SUBMITTAL OF REVISION 10 TO THE FIRE PROTECTION EVALUATICN REPCRT Gentlemen:
The Cincinnati Gas & Electric Company on behalf of itself and as agent for Columbus and Southern Ohio Electric Company and The Dayton Power and Light Company hereby submits forty (40) copies of Revision 10 to the Fire Protection Evaluation Report for the Wm. H. Zirser Nuclear Power Station - Unit 1 (ZPS-1).
Very truly ycurs, THE CINCINNATI GAS & ELECTRIC CCMPANY
?W-c --
s By E. A. BCRGMANN Vice President - Engineering Services and Electric Production EAB: dew cc:
Charles Eechhoefer State of Chio
)
Glenn O. Bright County of Hamilten)ss Frank F. Hocper Swcrn to and subscribed before me this Troy B. Ccnner, w,r.
<#r day of February, 1979.
f vames P.
Fenstermaker Peter H. Forster William J. Moran J. Robert Newlin
{
Q g,j William G. rorter, vr.
O Notary Public wames D. Flynn Thcmas A. Luebbers
.. o_ ' r :.3 Stephen Schumacher
, cr cm John D. Weliver h 2 -E2
ZPS-1 REVISION 10 FEBRUARY 1979 WM. H. ZIMMER POWER STATION INSTRUCTIONS FOR UPDATING YOUR FI.RE PROTECTION EVALUATION REPORT To update your copy of the ZPS-1 Fire Protection Evaluation Report, remove and destroy the following pages and insert pages and figures as indicated.
R, MOVE INSERT Page QO.1 Page QO-1 Page Q28-1 Page Q28-1 1
ZPS-1 REVISION 10 FEBRUARY 1979 RESPONSES TO NRC QUESTIONS CONTENTS NUMBER REFERENCE PAGE 2
General Plant Area Q2-1 3
Various Plant Areas Q3-1 4
Outside Auxiliary Building Q4-1 5
Section 8.2, Turbine Building QS-1 6
Section 8.4.1, Control Room Q S-1 7
Section 8.4.2, Division 1 Switchgear Area Q7-1 8
Sections 8.4.3, 8.4.8, and 8.4.11, Divisions 1, 2, and 3 Battery Rooms Q8-1 9
Sectien 8.4.4, Cable Spreading Room Q9-1 10 Section 8.4,5, Auxiliary Equipment Room Q10-1 11 Section 8.4.7, Division 2 Switchgear Area Qll-1 12 Section 8.4.9, Lif t Truck Route Into Auxiliar-Building Q12-1 13 Section 8.4.10, Division 3 Switengear Area Q13-1 14 Section 8.4.13, HVAC and Lab Area Q14-1 15 Section 8.4.14, Off-Gas Area Q15-1 16 Section 8.4.16, HVAC Area Ql6-1 18 Section 8.4.18, Diesel-Generator Area Q18-1 19 Section 8.5, Reactor Building Ql9-1 l4 21 Sections 8.7.2 and 8.7.3, Fire Pump Rooms Q21-1 22 Appendix A - D.5 Q22-1 23 General Site Area Q23-1 25 Appendix A, F.2 Q25-1 26 Appendix A Q26-1 27 General Plant Areas Q27-1 28 Section 8.5.12, Primary Containment Q28-1 l10 AQ1 Valves Not Electrically Supervised AQl-1 AQ2 Deleted AQ2-1 AQ3 Automatic Fire Detection in Safe Shutdown 7
Equipment Areas AQ3-1 AQ4 Administrative Controls and Brigade Training AQ4-1 Q0-1
ZPS-1 REVISION 10 FEBRUARY 1979 QUESTION 28 (3ection 8.5.12, Primary Containment)
"In your fire hazards analysis of a potential primary recirculation pump lube oil fire you state that 'any fire that occured in the area would be of very short duration and could not possibly affect any structural integrity or safety-related equipment.'
" Justify your assumptions used in making this conclusion and dis-cuss the effect that such an exposure fire could have on safety re-lated cable conduit or equipment located around or above the pumps due to the heat of the fire extending up through the drywell space.
" Alternatively a leak collection system designed to collect and con-tain the oil that may leak from a pump is acceptable."
RESPONSE
Pemps located in the drywell are not safety related. An exposure fire within the drywell would not negate shutdown.
Redundant isolation valves are located outside containment which back up any isolation valves which mignt be af fected inside containment.
The pump motor lubrication system is contained within the motor housing.
Since there are no external components of the lubrication system, such as piping, flanges, coolers and valves, an engineered oil leak collection system is not practical.
Only a mai-r 'moact to the motor housing that would cause structural damage to the housing r,uld cause an oil leak.
The rc:irculation pump itself is J ubricated and cooled by water.
The essential 6; visional cable penetrations are separated into opposite quadrants of the containment. The conductors themselves are encapsulated in stainless steel feedthroughs.
In the event of a fire that would affect the cables within the terminal boxes, indication would be given by anom-alous resocut of associated indicating lights on the main control board.
The hydraulic fluid in the recirc ulation flow control valve hydraulic system is Fyrquel 220, a fire-reristant, apprcved by Factory Mutual, or its equivalent. The periodic maintenance cid inspection requirements for the hydraulic system specifies fluid sample tests every 6 months.
Based on the sample tests, the fluid will be replaced as required and the system flushed.
The quantity of fluid within the containment is minimal, being that which is contained in the 1/2-irch and 3/4-inch heavy-wall hydraulic piping and the 6-inch bore hydreulic cylinder operator.
The hydraulic piping within the containment is seismically supported to prevent failure.
The 50-gallon reservoir is at atmospheric pressure and fluid supply pump trips on loss of pressure in pump discharge lines, thus precluding the spraying of a quantity of fluid from an open line.
Q28-1