ML20199A506
| ML20199A506 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 01/08/1999 |
| From: | Terry C, Woodlan D TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| TXX-99010, NUDOCS 9901130050 | |
| Download: ML20199A506 (2) | |
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Log # TXX 99010 File # 10010 r
r Ref. # 10CFR50.46 1UELECTRIC January 8, 1999
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' Senior Mce President
& PrincipalNuclear Oficer U.. S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 l
SUBJECT:
COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)
DOCKET NOS. 50 445 AND 50 446 ANNUAL REPORT OF CHANGES IN PEAK CLADDING TEMPERATURE Gentlemen:
In accordance with the requirements of 10CFR50.46(a)(3)(ii), TV Electric submits the attached changes or errors discovered in the Emergency Core Cooling System-(ECCS) evaluation model used to calculate peak cladding temperature (PCT) and the estimated effect of these changes or errors on the limiting-ECCS analysis.
It is the' current TV Electric practice to perform a new large break LOCA' analysis for each reload cycle thereby establishing a I
new PCT for each fuel cycle.
This communication contains no new licensing basis commitments regarding CPSES Units 1 and 2.
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Sincerely, I
C. L. Terry
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By:
D. R. Woodlan
- ,g Docket Licensing Manager JDS/grp s
3
.. Attachment c-Mr. E. W. Herschoff, Region IV Mr. J. I. Tapia ' Region IV Mr.~T. J. Polich, NRR Resident Inspectors, CPSES COMANCllE PEAK STEAM EL ECTRIC STATION O8~8W Glen Rose. Texas 7&M).1002 g gg PDR ADOCK 05000445
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l Attachment to TXX 99010 P, age 1,of 1 4
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.CPSES UNIT 1 PEAK CLADDING TEMPERATURE CHAhGES ('F)
ANALYSIS OF RECORD *
(CYCLE 7 ANALYSIS) 2023 ECCS MODEL ASSESSMENTS -
NONE ECCS INPUT ERROR NONE
-CURRENT PCT VALUE (CYCLE 6 ANALYSIS) 2023 CPSES UNIT 2 PEAK CLADDING TEMPERATURE CHANGES ('F)
ANALYSIS OF RECORD *
(CYCLE 4 ANALYSIS) 2119 i
ECCS H0 DEL ASSESSMENTS -
NONE i
l ECCS INPUT ERROR NONE I
CURRENT PCT VALUE (CYCLE 4 ANALYSIS) 2119 1
- ' Includes penalties associated with Z equivalent error identified in NRC letter from Mr. T. J. Polich to Mr. C. L. Terry dated December 30, 1998.
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