ML073450332
| ML073450332 | |
| Person / Time | |
|---|---|
| Site: | Robinson  (DPR-023) |
| Issue date: | 12/06/2007 |
| From: | Baucom C Progress Energy Carolinas |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| GL-07-001, RNP-RA/07-0129 | |
| Download: ML073450332 (4) | |
Text
101CFR 50.54(f)
Progress Energy Serial: RNP-RAJ07-0129 OEt 0 6 ZUMi United States Nuclear Regulatory Commission ATTN: Document Control Desk 11555 Rockville Pike Rockville, Maryland 20852 H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO. 2 DOCKET NO. 50-261/LICENSE NO. DPR-23 RESPONSE TO NRC REQUEST FOR ADDITIONAL INFORMATION RELATED TO GENERIC LETTER 2007-01, "INACCESSIBLE OR UNDERGROUND POWER CABLE FAILURES THAT DISABLE ACCIDENT MITIGATION SYSTEMS OR CAUSE PLANT TRANSIENTS" Ladies and Gentlemen:
By electronic mail message dated October 23, 2007, the NRC requested that Carolina Power and Light Company, also known as Progress Energy Carolinas, Inc. (PEC), respond to a request for additional information (RAI) regarding NRC Generic Letter 2007-01, "Inaccessible or Underground Power Cable Failures that Disable Accident Mitigation Systems or Cause Plant Transients." Attachment II to this letter provides the RAI response for the H. B. Robinson Steam Electric Plant, Unit No. 2.
Attachment I provides an Affirmation in accordance with the provisions of Section 182a of the Atomic Energy Act of 1954, as amended, and 10 CFR 50.54(f).
There are no commitments associated with this letter.
If you have any questions concerning this matter, please contact Mr. C. A. Castell at (843) 857-1626.
Sincerely, C. T. Baucom Manager - Support Services - Nuclear CTB/ahv Progress Energy Carolinas, Inc.
Robinson Nuclear Plant 3581 West Entrance RoadA Hartsville, SC 29550
United States Nuclear Regulatory Commission Serial: RNP-RA/07-0129 Page 2 of 2 Attachments:
I.
Affirmation II.
Response to NRC Request for Additional Information Related to Generic Letter 2007-01, "Inaccessible or Underground Power Cable Failures that Disable Accident Mitigation Systems or Cause Plant Transients" c:
Dr. W. D. Travers, NRC, Region II Ms. M. G. Vaaler, NRC, NRR NRC Resident Inspector
United States Nuclear Regulatory Commission Attachment I to Serial: RNP-RA/07-0129 Page 1 of 1 AFFIRMATION The information contained in letter RNP-RA/07-0129 is true and correct to the best of my information, knowledge, and belief; and the sources of my information are officers, employees, contractors, and agents of Carolina Power and Light Company, also known as Progress Energy Carolinas, Inc. I declare under penalty of perjury that the foregoing is true and correct.
Executed On: 12.'
1 T. D. Walt Vice President, HBRSEP, Unit No. 2
United States Nuclear, Regulatory Commission Attachment II to Serial: RNP-RA/07-0129 Page 1 of 1 H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO. 2 RESPONSE TO NRC REQUEST FOR ADDITIONAL INFORMATION RELATED TO GENERIC LETTER 2007-01, "INACCESSIBLE OR UNDERGROUND POWER CABLE FAILURES THAT DISABLE ACCIDENT MITIGATION SYSTEMS OR CAUSE PLANT TRANSIENTS" NRC Request:
The U.S. Nuclear Regulatory Commission (NRC) staff has received the cable failure history for H. B. Robinson in response to Generic Letter (GL) 2007-01, "Inaccessible or Underground Power Cable Failures that Disable Accident Mitigation Systems or Cause Plant Transients."
During its review, the licensee found failures of cables within the scope of Title 10 of the Code of Federal Regulations (10 CFR), Section 50.65, "Requirements for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants" (Maintenance Rule). Please provide the type of cable insulation for the cable failures identified in H. B. Robinson's response to GL 2007-01.
Response
A review of electrical cable specifications has been completed to identify the type of cable insulation for the cable failures identified in the H. B. Robinson Steam Electric Plant, Unit Nd. 2, generic letter response. This review involved specifications for the purchase of electrical cables in conjunction with original plant construction, i.e., specifications from the time period of 1967 and 1968. These specifications indicate the type of insulation for the identified cable failures is most likely polyvinyl chloride jacket.