ML083050636

Request for Additional Information Relief Request P-2 for Inservice Testing Plan for Pumps and Valves

ML083050636
Person / Time
Site:	Comanche Peak
Issue date:	11/10/2008
From:	Balwant Singal Plant Licensing Branch IV
To:	Blevins M Luminant Generation Co
Singal, Balwant, 415-3016, NRR/DORL/LPL4
References
TAC MD9722, TAC MD9723
Download: ML083050636 (3)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 November 10, 2008 Mr. M. R. Blevins Executive Vice President

& Chief Nuclear Officer Luminant Generation Company LLC ATIN: Regulatory Affairs P. O. Box 1002 Glen Rose, TX 76043

SUBJECT:

COMANCHE PEAK STEAM ELECTRIC STATION, UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION REGARDING THE RELIEF REQUEST NO. P-2 ASSOCIATED WITH INSERVICE TESTING PLAN FOR PUMPS AND VALVES (TAC NOS. MD9722 AND MD9723)

Dear Mr. Blevins:

By letter dated September 24, 2008 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML082770065), Luminant Generation Company LLC (the licensee) submitted relief request P-2 for the second 1O-year pump and valve inservice testing plan for Comanche Peak Steam Electric Station, Units 1 and 2. The licensee requested relief from American Society of Mechanical Engineers Operation and Maintenance Code, 1998 Edition through 2000 Addenda, for the testing of the Safeguards Building Sump Pumps.

The U.S. Nuclear Regulatory Commission staff has reviewed the information provided in the application and determined that additional information is needed in order to complete the evaluation. The request for additional information (RAI) was discussed with Mr. Jack Hicks of Luminant Generation Company LLC on November 10, 2008 and it was agreed that RAI response will be provided within 30 days from the date of this letter.

If you have any questions, please contact me at 301-415-3016.

Sincerely, b~\\;Jc\~ K1>\.~~

Balwant K. Singal, Senior projectlMan;ger Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-445 and 50-446

Enclosure:

As stated cc w/encl: Distribution via Listserv

REQUEST FOR ADDITIONAL INFORMATION RELIEF REQUEST P-2 INSERVICE TESTING PLAN FOR PUMPS AND VALVES COMPANCHE PEAK STEAM ELECTRIC STATION, UNITS 1 AND 2 DOCKET NOS. 50-445 AND 50-446 By letter dated September 24, 2008 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML082770065), Luminant Generation Company LLC (the licensee) submitted relief request (RR) P-2 for the second 1O-year pump and valve inservice testing plan for Comanche Peak Steam Electric Station, Units 1 and 2. The licensee requested relief from American Society of Mechanical Engineers Operation and Maintenance Code, 1998 Edition through 2000 Addenda, for the testing of the Safeguards Building Sump Pumps (SBSP).

The U.S. Nuclear Regulatory Commission staff has reviewed the information provided in the application and determined that the following additional information is needed in order to complete the evaluation:

1. The RR states a test can be performed that demonstrates the SBSP can meet its intended safety functions. Please provide a copy of the test procedure that will be used, including acceptance criteria to be utilized, to determine acceptable pump performance.

2. The RR states the SBSP test will require pumping the same quantity of fluid along a repeatable system path, while measuring flow and vibration. Please describe how the flow rate is measured or determined. Also, discuss any system parameters associated with the flow path that will affect the results of the test and how those parameters will be controlled such that repeatability is achieved.

3. The RR states the required SBSP head to pump to the Waste Holdup Tank is greater than the required head to discharge to the Floor Drain Tank, which is the normal lineup.

Please discuss the safety-related lineup of the sump pumps and how the discharge head required during testing and normal operation differs from the discharge head required during emergency conditions.

Enclosure

November 10, 2008 Mr. M. R. Blevins Executive Vice President

& Chief Nuclear Officer Luminant Generation Company LLC ATTN: Regulatory Affairs P. O. Box 1002 Glen Rose, TX 76043

SUBJECT:

COMANCHE PEAK STEAM ELECTRIC STATION, UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION REGARDING THE RELIEF REQUEST NO. P-2 ASSOCIATED WITH INSERVICE TESTING PLAN FOR PUMPS AND VALVES (TAC NOS. MD9722 AND MD9723)

Dear Mr. Blevins:

By letter dated September 24, 2008 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML082770065), Luminant Generation Company LLC (the licensee) submitted relief request P-2 for the second 1O-year pump and valve inservice testing plan for Comanche Peak Steam Electric Station, Units 1 and 2. The licensee requested relief from American Society of Mechanical Engineers Operation and Maintenance Code, 1998 Edition through 2000 Addenda, for the testing of the Safeguards Building Sump Pumps.

The U.S. Nuclear Regulatory Commission staff has reviewed the information provided in the application and determined that additional information is needed in order to complete the evaluation. The request for additional information (RAI) was discussed with Mr. Jack Hicks of Luminant Generation Company LLC on November 10, 2008 and it was agreed that RAI response will be provided within 30 days from the date of this letter.

Sincerely, IRAI Balwant K. Singal, Senior Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-445 and 50-446

Enclosure:

As stated cc w/encl: Distribution via Listserv DISTRIBUTION:

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