CP-200800053, Submittal of Annual Report of Changes in Peak Cladding Temperature for Comanche Peak Steam Electric Station (CPNPP) Units 1 and 2

Submittal of Annual Report of Changes in Peak Cladding Temperature for Comanche Peak Steam Electric Station (CPNPP) Units 1 and 2

ML080220471
Person / Time
Site:	Comanche Peak
Issue date:	01/10/2008
From:	Blevins M Luminant Generation Co, Luminant Power
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
CP-200800053, TXX-08005
Download: ML080220471 (3)

Text

Mike Blevins Lumrinant Power Executive Vice 'resident P 0 Box 1002

& Chief Nuclear Officer 6322 North FM 56 Mike.Blevins@1 uminant.com Glen Rose, TX 76043 m

Lum Sinant T 254 897 5209 C 817 5599085 F 254 897 6652 CP-200800053 Ref. # 10CFR50.46 Log # TXX-08005 January 10, 2008 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555

SUBJECT:

COMANCHE PEAK STEAM ELECTRIC STATION DOCKET NOS. 50-445 AND 50-446 ANNUAL REPORT OF CHANGES IN PEAK CLADDING TEMPERATURE

Dear Sir or Madam:

In accordance with the requirements of 10CFR50.46(a)(3)(ii), Luminar t Generation Company LLC (Luminant Power) submits the attached peak cladding temperatures (PCT) for Comanche Peak Steam Electric Station (CPNPP) Units 1 and 2. The Large-Break Loss-of-Cool Int-Accident and Small-Break Loss-of-Coolant-Accident analysis for Units 1 and 2 were performed b Luminant Power with the approved methodologies listed in Technical Specification 5.6.,5. It was determined that there were no changes or errors in the Emergency Core Cooling System (ECCS) evaluation model used to calculate peak cladding temperature (PCT).

This communication contains no new licensing basis commitments regarding CPNPP Units 1 and 2.

A member of the STARS (Strategic Teaming and Resource Sharing) Alliance A OD2-Callaway

• Comanche Peak

• Diablo Canyon

• Palo Verde

• South Texas Project - Wolf Creek

U. S. Nuclear Regulatory Commission TXX-08005 Page 2 01/10/2008 Should you have any questions, please contact Mr. J. D. (254) 897-0140.

Sincerely,'

Luminant ;eneration Company LLC Mike Blevins By: /&/ *2'2.2-

/Fred W. Madden Director, Oversight & Regulatory Affairs Attachment - CPNPP Units 1 and 2 Peak Cladding Temperatures I

C- E. E. Collins, Region IV B. K. Singal, NRR Resident Inspectors, Comanche Peak

Attachment to TXX-08005 Page 1 of 1 CPNPP Units 1 and 2:

Peak Cladding Temperatu es, Analysis CPNPP Unit 1 CPNPP Unit 2 Evaluation PCT (TF) PCT (OF)

Large Break LOCA 2021 2058 Small Break LOCA 2080 1832 (1830+250)*

A 250 'F penalty for CPNPP Unit 1 Cycle 13 is applied per the NRC's Safety Evaluation regarding review of Topical Reports ERX-04-004, "Replacement Steam Generator Supplement to TXU Power's Large and Small Break Loss of Coolant Accident Analysis Methodologies" and ERX-04-005, "Application of TXU Power's Non-LOCA (Non-Loss-of-Coolant Accident)

Transients Analysis Methodologies to a Feed Ring Steam Generator Design." (ML070770009)