ML100960181
| ML100960181 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 04/12/2010 |
| From: | Balwant Singal Plant Licensing Branch IV |
| To: | Flores R Luminant Generation Co |
| Singal, B K, NRR/DORL, 301-415-301 | |
| References | |
| TAC ME2546, TAC ME2547 | |
| Download: ML100960181 (4) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 April 12, 2010 Mr. Rafael Flores Senior Vice President and Chief Nuclear Officer Attention: Regulatory Affairs Luminant Generation Company LLC P.O. Box 1002 Glen Rose, TX 76043 SUB~IECT:
COMANCHE PEAK NUCLEAR POWER PLANT, UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION RE: REVISION TO TECHNICAL SPECIFICATION 3.8.1, "AC SOURCES - OPERATING," FOR A ONE-TIME, 14-DAY COMPLETION TIME FOR OFFSITE CIRCUITS (TAC NOS. ME2546 AND ME2547)
Dear Mr. Flores:
By "CP-200900520, License Amendment Request (LAR 09-003), Revision to Technical Specification 3.8.1, AC Sources - Operating, for One-Time, 14-Day Completion Time for [[Topic" contains a listed "[" character as part of the property label and has therefore been classified as invalid.s|letter dated October 26, 2009]] (Agencywide Documents Access and Management System (ADAMS) Accession No. ML093080341), Luminant Generation Company LLC (the licensee) requested an amendment to the Comanche Peak Nuclear Power Plant, Units 1 and 2, Technical Specification (TS) 3.8.1, "AC [alternating current] Sources - Operating," for a one-time, 14-day completion time for offsite circuits.
The U.S. Nuclear Regulatory Commission (NRC) staff has reviewed the information provided by the licensee and determined that additional information is needed in order to complete the review. A draft copy of the request for additional information was forwarded to Ms. Tamera ~I.
Ervin-Walker of your staff on March 30, 2010, via e-mail. On April 1, 2010, the licensee informed the NRC staff via e-mail that the licensee's staff understands the request and no further discussions with the NRC are needed. The licensee agreed to provide the final response within 30 days from the date of this letter.
R. Flores
- 2 If you have any questions, please contact me at 301-415-3016 or via e-mail at balwant.singal@nrc.gov.
Sincerely, bc~ ~ LCP-J- \\(-~,~~
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
REQUEST FOR ADDITIONAL INFORMATION REVISION TO TECHNICAL SPECIFICATION 3.8.1 LUMINANT GENERATION COMPANY LLC COMANCHE PEAK NUCLEAR POWER PLANT, UNITS 1 AND 2 DOCKET NOS. 50-445 AND 50-446 By "CP-200900520, License Amendment Request (LAR 09-003), Revision to Technical Specification 3.8.1, AC Sources - Operating, for One-Time, 14-Day Completion Time for [[Topic" contains a listed "[" character as part of the property label and has therefore been classified as invalid.s|letter dated October 26,2009]] (Agencywide Documents Access and Management System (ADAMS) Accession No. ML093080341), Luminant Generation Company LLC (the licensee) requested an amendment to the Comanche Peak Nuclear Power Plant, Units 1 and 2, Technical Specification (TS) 3.8.1, "AC [alternating current] Sources - Operating," for a one-time, 14-day completion time for offsite circuits.
The U.S. Nuclear Regulatory Commission (NRC) staff has reviewed the information provided by the licensee and determined that the following additional information is needed in order to complete the review. The licensee agreed to provide the following additional information within 30 days from the date of the NRC letter forwarding the request for information:
- 1.
The criteria used for sizing of the Temporary Power Diesel Generators (TPDGs) to provide adequate capacity and capability to supply necessary equipment for safe shutdown and long-term cooling for each unit.
- 2.
The initial testing and availability verification (once per shift) to be completed to ensure the TPDGs are adequate to perform their design function throughout the extended Completion Time.
- 3.
Procedures and administrative controls established to synchronize the TPDGs and connect to the safe shutdown busses.
- 4.
Timeline established to power the safe shutdown busses from the TPDGs in the event of loss of preferred power sources and consequences (if any) on safety limits.
- 5.
Capability of the TPDGs to start the largest motors.
- 6.
Rating of each unit in the TPDG set.
- 7.
Temporary changes to permanent plant equipment (protective relay settings, breaker line up, etc.) to integrate the TPDGs.
Enclosure
R. Flores
- 2 If you have any questions, please contact me at 301-415-3016 or via e-mail at balwant.singal@nrc.gov.
Sincerely, IRA!
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:
PUBLIC LPLIV Reading RidsAcrsAcnw_MailCTR Resource RidsNrrDorlLpl4 Resource RidsNrrDeEeeb Resource RidsNrrPMComanchePeak Resource RidsNrrLAJBurkhardt Resource RidsOgcRp Resource RidsRgn4MailCenter Resource KMiller, NRRIDE/EEEB ADAMS Accession No.: ML100960181
- RAI Memo OFFICE NRRlLPL4/PM NRR/LPL4/LA NRRlDE/EEEB/BC NRRlLPL4/BC NRR/LPL4/PM NAME BSingal JBurkhardt GWilson*
MMarkley BSingal DATE 4/12/10 4/9/10 3/30/10 4/12/10 4/12/10 OFFICIAL AGENCY RECORD