ML20199J991
| ML20199J991 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 02/02/1998 |
| From: | Terry C TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20199J995 | List: |
| References | |
| TXX-98020, NUDOCS 9802060076 | |
| Download: ML20199J991 (4) | |
Text
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- - 9 C.
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Log # TXX 98020 C
File # 10010 clo Ref. #
FR50.48 c, % %
February 2, 1998 Senior 11ce Pmident
& PrincipalNewlear Oficer U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555
SUBJECT:
COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)
DOCKET NOS. 50 445 AND 50 446 TRANSMITTAL OF FIRE PROTECTION REPORT. REVISION 13 Gentlemen:
TU Electric, the owner of CPSES Units 1 and 2, herewith submits Revision 13 of the CPSES Fire Protes. tion Report (FPR).
A page by page description of the changes is attached. The group number assigns a level of significance for each change made to the Fire Protection Report consistent with TV Electric's letter TXX 88467 of June 1, 1988.
In addition, all changes have been reviewed under the TV Electric 50.59 process and found not to include any "unreviewed safety s
/
questions."
Pages which do not have technical changes but are included in the revision (because a change shifted the existing material to arcther page or because only editorial changes were made to the Fire Protection Report) are not discussed in the Attachment "CPSES FPR Revision 13 Detailed Description."
These changes will not advarsely affect the ability to achieve and maintain safe shutdcaii in the event of a fire.
FPR Revision 13 is being issued on February 2, 1998 and will be executed at 12:01 A.M. CST on February 16, 1998.
Enclosed are one signed original and on( copy of the CPSES FPR Revision
- 13. One copy each has been issued to the Regional Administrator for region IV, the responsible Branch Chief in the Diu.lon of Reactor
-Projects.the res)onsible Project Manager in the Office of Nuclear Reactor Regulation, and tle appropriate NRC Resident Inspector. The remaining seven copies prescribed in 10CFR50.4(b)(6), will be maintained at 1U Electric and available upon request for a period of olie year following issuance of the amendment.
g0h 9902060076 990202 I"
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N Q%[ghh COMANCllE PEAK STEAM ELECTRIC STATION 18.O. Box 1002 Glet. he, Texas 764 0-1002 L
--TXX 98020 Page 2 of 2 If-you should have any questions, please contact Mr. Obaid Bhatty at (254)897 5839.
Sincerely.
C. L. Terry By:
b M. R. Blevins Vice President of Nuclear Operations OB/ob Attachment Enclosure e
c' Mr. E. W. Herschoff. Region IV Mr. J. I. Tapia. Region IV -
Mr. T. J. Polich. NRR Resident Inspector. CPSES m
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Attachment tc TXX 98020 Page 1 of 2 CPSES FIRE PROTECT'.0N REPORT REVISION 13 DETAILED DESCRIPTION Prefix Page (as amended)
Group Descriotion I5 2
This Revision has been developed to reflect I9 Thermo Lag fire barriers installed within Unit I 10
- 1. Unit 2 and Common plant areas as I 13 combustible materials.
In revising the FPR, the description of the fire hazards associated Section II 2
with all plant fire areas / fire zones was (Entire changed from a basis of reporting specific Section)
Btu /sq. ft, values and associated postulated fire durations (i.e., minutes) to reporting a IV 6 2
derived fire load classification (e.g., low, moderate, high and >High) for each fire Section V 2
area / zone. The reason for changing the basis
( Applicable of how fire hazards in plant areas are Deviation reported in the FPR is twofold.
Pages)
First, due to the quantity of Thermo Lag barriers at CPSES, inclusion of its heat of combustion value (7,000 Btu /lb.) into the combustible " inventory" for plant areas where it is installed, results in overall combustible loading values (Btu /sq. ft.) and postulated fire durations (minutes) that are not reflective of the limited cooustible properties of the material.
Thermo Lag is self extinguishing in the absence of an external heat source, therefore, it is not credible that the material will burn longer that the sum of all other combustibles in the area.
Second, the previous method of reporting specific Btu /sq. ft. and postulated fire durations in the FFR resulted in the need to revise a licensing basis document to reflect minor changes (minor additions or even deletions) to in situ plant combustible materials. The revised FPR will only be affected if combustibles exceeded a pre-established classification.
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l Attachment to TXX 98020 Page 2 of-2 CPSES FIRE PROTECTION REPORT REVISION 13 DETAILED DESCRIPTION l
Prefix Page I
(as amended)
Grouc Qtgr_in11on III 62 2
This addition clocuments the installation of III 63-new fan coil units in each of the UPS III 64 Equipment Rooms. This equipment is designed III 65 for Fire Safe Shutdown (FSSD) use as an alternative to the normal UPS HVAC system.
This is a plant. enhancement.
III 78 2
Valves 1 HV 2452 1 and 2 HV 2452 1 were j
swapped between steam lines 1 and 4.
This update is intended to maintain configuration control and to maintain the Licensing Documents current.
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