ML20236G017

Requests Addl Info Re 871003 Fire in Turbine Bldg.Schedule for Full Response Should Be Provided at Proposed Meeting. Info Requested Includes Evaluations of Fire Protection Features,Control Room Ventilation Sys & Hydraulic Sys

ML20236G017
Person / Time
Site:	Fort Saint Vrain
Issue date:	10/22/1987
From:	Heitner K Office of Nuclear Reactor Regulation
To:	Robert Williams PUBLIC SERVICE CO. OF COLORADO
References
TAC-66365, NUDOCS 8711020378
Download: ML20236G017 (3)

Text

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d October 22, 1987

' Docket No. 50-267 Mr. R. 0. Williams, Jr.

Vice President, Nuclear Operations Public Service Company of Colorado

.P. O. Box 840 Denver, Colorado 80201-0840 L

SUBJECT:

REC 0VERY FROM TUPBINE BUILDING FIRE (TAC N0. 66365) ,

On October.3, 1987, a fire occurred in the Turbine Building at the Fort St. '

Vrain Nuclear Generating Station (FSV). Since that fire occurred, you have met with-the Augmented Inspection Team (AIT) specifically created to investigate  !

that event. The AIT will provide a separate report concerning their findings.

By letter dated October'19, 1987 (P-87347) you proposed to meet with the-staff  !

to discuss again significant aspects of this event, and the recovery from the event.. Specific areas in ' which you should plan to provide additional informa-tion to the staff are summarized in the enclosure.

We request that you provide a schedule .for your full response at the meeting.

Your proposed schedule should indicate when you will provide all of the re-

. quested information, and when you plan to return FSV to operation.

The information requested in this letter affects fewer than 10 respondents; '

therefore OMB clearance is not required under P.L.95-511.

I Sincerely, lSl 1 nne nu, ect Manager  !

8711020378 871022 Project Directorate - IV i PDR ADOCK 05000267 Division of Reactor Projects - III, i F PDR i IV, V and Special Projects

Enclosure:

(

As stated  !

cc w/ enclosure:

See next,page DI511fIBUTION

-86cket File NRC PDR Local PDR PD4 Reading i P. Noonan J. Calvo K. Heitner 0GC-Bethesda ,

E. Jordan J. Partlow ACRS (10) PD4 Plant File i LTR NAME: FSV 883 1

PD4/L PD4/PM PD4/D lb PNoo a KHeitner: sr JCalvo ,

10 87 10/D/87 10/n/87 1

.; 'y-

.- 1 c Mr. R. O. Williams, Jr.c Fort St.'Vrain

, !Public. Service Company of Colorado

. i i

cc: .

i Albert J. Hazle, Director.

Mr. D. W.'Warembourg, Manager l Nuclear Engineering Division Radiation Control Division J

'.Public Service Company -Department of Health j of Colorado- 4210 East lith Avenue 1 P. O.. Box'840. .

Denver, Colorado 80220- I

' Denver,. Colorado . 80201-0840 ]

lir. David Alberstein,'14/159A Mr. R.: 0. Williams,< Jr. , Acting Manager -

GA Technologies, Inc. Nuclear Production Division-Post Office Box 85608 . Public-Service' Company of Colorado.

. San Diego, California 92138: _'16805 Weld County Road'19-1/2

.' Platteville, Colorado 80651 Mr. H.-.L. Brey,. Manager Nuclear. Licensing and Fuel Division Mr. P. F. Tomlinson, Manager Public Service Company of. Colorado- Quality' Assurance Division P. 0.4 Box 840 _

Public Service Company of.Colorr.do.

. Denver, Colorado 80201-0840 16805 Weld County Road 19-1/2 Senior Resident Inspector.

U.S. Nuclear Regulatory Commission Mr. R. F. Walker P. O. Box 640- Public Service Company of Colorado lf ~Platteville, Colorado ;80651 Post Cffice Box 840 l Denver, Colorado 80201-0840

, Kelley, Stansfield &.0'Donnell

'Public Service Company Building Commitment Control Program-Room:900 .

Coordinator 550 15th Street Public Service Company of Colorado Denver, Colorado :80202 , 2420 W. 26th Ave. Suite 100-D

~

Denver, Colorado 80211 RegionalLAdministrator, Region IV U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 1000 Arlington, M xas 76011 Chairman, Board of County Commissioners o 'of Weld County, Colorado Greeley,: Colorado 80631 Regional Representative

' Radiation Programs i' environmental Protection Agency

'l Denver Place

'999 18th Street, Suite 1300 ]

Denver,' Colorado 80202-2413  !

l l

., g .

l ..- Enclosure.

Request ~for Additional Information Fort St. Vrain Turbine Building Fire of October 2, 1987 1

1 1

1.. Provide an evaluation of the fire protection features of the Turbine l Building,. including the areawide fire detection system during this event.

Compare the adequacy of the present manual fire fighting capablility for the areas in which there are hydraulic system components with automatic ,

suppression capability as recommended by the National Fire Protection l Association.

2. Provide an evaluation of the control room ventilation system during this event.. This should include a reevaluation of this system's design basis.

3.. Provide an. evaluation of the hydraulic system during this event. This evaluation should focus on the hydraulic system as a potential source of combustible material. The design of the hydraulic system in proximity to existing hot surisees (ignition sources) should be examined. The system design should be reevaluated to assure that adequate margins exist against failures caused by transient (impulse) pressure peaks.

Each evaluation should specify changes and improvements that PSC plans to make in these areas prior to return to operation. Long term improvements should also be discussed. The evaluations should cover changes to system and component design, related Technical Specifications and procedures, and operator training. Changes to supporting maintenance or repair activities should also be identified.

4. Provide a summary of all major systems, structures and components affected by the fire and the suppression of the fire. Describe the actions taken to assure that whatever damage received by these components does not compromise their ability to perform their design function. Specific attention should be directed to safety related components, and systems and the high energy lines in the fire area. The examination should d specifically address:

Potential damage to hot high energy lines and components from inundation with cold firewater, and Potential damage to qualified components, systems, and their materials from fire generated combustion products.

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