ML082900957

From kanterella
Jump to navigation Jump to search

Closeout of Generic Letter 2007-01 Inaccessible of Underground Power Cable Failures That Disable Accident Mitigation Systems or Cause Plant Transients
ML082900957
Person / Time
Site: Kewaunee Dominion icon.png
Issue date: 10/22/2008
From: Tam P
Plant Licensing Branch III
To: Christian D
Dominion Energy Kewaunee
Tam P
References
TAC MD4338
Download: ML082900957 (3)


Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 October 22, 2008 Mr. David A. Christian President and Chief Nuclear Officer Innsbrook Technical Center 5000 Dominion Boulevard Glen Allen, VA 23060-6711

SUBJECT:

KEWAUNEE POWER STATION - CLOSEOUT OF GENERIC LEDER 2007-01 "INACCESSIBLE OR UNDERGROUND POWER CABLE FAILURES THAT DISABLE ACCIDENT MITIGATION SYSTEMS OR CAUSE PLANT TRANSIENTS" (TAC NO. MD4338)

Dear Mr. Christian:

On February 07,2007, the U.S. Nuclear Regulatory Commission (NRC) issued Generic Letter (GL) 2007-01, "Inaccessible or Underground Power Cable Failures That Disable Accident Mitigation Systems or Cause Plant Transients" (Agencywide Documents Access and Management System (ADAMS) Accession No. ML070360665). GL 2007-01 requested that licensees provide the following information within 90 days of the date of the GL:

(1) A history of inaccessible or underground power cable failures for all cables that are within the scope of 10 CFR 50.65 (the Maintenance Rule) and for all voltage levels including the cable type, cable manufacturer, date of failure, type of service, voltage class, years of service, and the root causes for the failure; and, (2) A description of all inspection, testing, and monitoring programs to detect the degradation of inaccessible or underground power cables that support emergency diesel generators (EDGs), offsite power, emergency service water (ESW), service water, component cooling water and other systems that are within the scope of 10 CFR 50.65 (the Maintenance Rule).

In your letters dated May 7,2007, and April 4, 2008 (ADAMS Accession Nos. ML071270786 and ML080950371, respectively), you provided the information requested in GL 2007-01 and the subsequent request for additional information including: (1) A history of inaccessible or underground power cable failures for all cables that are within the scope of 10 CFR 50.65 (the Maintenance Rule) and for all voltage levels including the cable type, cable manufacturer, date of failure, type of service, voltage class, years of service, and the root causes for the failure; and, (2) A description of all inspection, testing, and monitoring programs to detect the degradation of inaccessible or underground power cables that support EDGs, offsite power, ESW, service water, component cooling water and other systems that are within the scope of 10 CFR 50.65 (the Maintenance Rule).

The NRC staff has reviewed the submitted information and has concluded that for Kewaunee Power Station, your response to GL 2007-01 is adequate. Based on this review, your response to GL 2007-01 is considered closed and no further action is requested of you at this time.

D. A. Christian -2 If you have any questions regarding this letter, please feel free to contact me at 301-415-1451.

Sincerely,

~7~SZ Peter S. Tam, Senior Project Manager Plant Licensing Branch 111-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-305 cc: Distribution via ListServ

October 22, 2008 D. A. Christian -2 If you have any questions regarding this letter, please feel free to contact me at 301-415-1451.

Sincerely, lRAI Peter S. Tam, Senior Project Manager Plant Licensing Branch 111-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-305 cc: Distribution via ListServ DISTRIBUTION:

PUBLIC RidsOgcRpResource LPL3-1R/F RidsAcrsAcnw_MailCTRResource RidsNrrDorlLpl3-1 Resource RidsRgn3MailCenterResource RidsNrrLATHarrisResource RidsNrrDeEeeb (GWilson)

RidsNrrPMKewaunee Resource RidsNrrDorlDPRResource CGoodwin, NRR ADAMS Accession Number' ML082900957 NRR-106 OFFICE LPL3-1 J:.M/ LPL3-1 :LA EEEB:BC LPL3-1 :BC "

NAME PTam \\YI THarris ~. !J t} GWilson bow LJames 'J4./Y';~

'J DATE 10/2.\ loa" l 1011/ oa 10lO4oa 10ayoa OFFICIAL RECORD COpy