ML16131A373
| ML16131A373 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 03/10/1992 |
| From: | Wiens L Office of Nuclear Reactor Regulation |
| To: | Hampton J DUKE POWER CO. |
| Shared Package | |
| ML16131A374 | List: |
| References | |
| RTR-REGGD-01.155, RTR-REGGD-1.155 TAC-M68574, TAC-M68575, TAC-M68576, NUDOCS 9203160260 | |
| Download: ML16131A373 (3) | |
Text
0 UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 March 10, 1992 Docket Nos. 50-269, 50-270 and 50-287 Mr. J. W. Hampton Vice President, Oconee Site Duke Power Company P. 0. Box 1439 Seneca, South Carolina 29679
Dear Mr. Hampton:
SUBJECT:
SAFETY EVALUATION FOR STATION BLACKOUT (10 CFR 50.63)
OCONEE NUCLEAR STATION, UNITS 1, 2, AND 3 (TACS M68574/
M68575/M68576)
Your letters dated April 17, 1989, and April 4, 1990, provide Duke Power Company's (DPC) responses to the Station Blackout Rule (SBO) for the Oconee Nuclear Station, Units 1, 2, and 3. The NRC staff also conducted an audit review of DPC's SBO supporting documentation during the week of August 5-9, 1991.
Your responses were reviewed by the NRC staff and its contractor, and that review is documented in the attached Safety Evaluation (SE) and supporting Technical Evaluation Report.
Based on our review of your response to 10 CFR 50.63, we find that the Oconee Nuclear Station design does not conform with the SBO rule, the guidance of Regulatory Guide 1.155, NUMARC 87-00, and NUMARC 87-00 Supplemental Questions/Answers and Major Assumptions (dated December 27, 1989).
The areas of non-conformance are identified in the SE.
It should be noted that the most significant area of concern is the disablement of the normal plant control rooms due to insufficient capacity of the station batteries to support SBO loads for 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />. The SE also provides recommendations and a request for additional information. You should review the areas of non-conformance, recommendations, and the request for additional information identified in the attached SE and submit a revised response within 60 days of receipt of this SE.
Technical Specifications (TS) for the SBO equipment are currently being considered generically by the NRC in the context of the TS Improvement Program. The issue remains open at this time. If the NRC staff determines that TS on SBO equipment are warranted, we will notify you of the associated implementation requirements.
9203160260 920310 PDR ADOCK 05000269 P
Mr. J. W. Hampton 2 -
March 10, 1992 If you have any questions regarding this matter, please contact me at 301-504 1495.
Sincerely, L. A. Wiens, Project Manager Project Directorate 11-3 Division of Reactor Projects -
I/II Office of Nuclear Reactor Regulation
Enclosure:
Safety Evaluation cc w/enclosure:
See next page Distribution:
Docket File G. Holahan, 8E2 NRC & Local PDRs F. Rosa, 7E4 PDII-3 R/F A. Toalston, 7E4 Oconee R/F P. Tam, 14B21 S. Varga G. Lainas D. Matthews L. Berry L. Wiens OGC ACRS (10)
A L. Reyes, RII LA:PDII3 2
P:II-3
- DII-3 LBerry LWiens/rst DMatthews I/0 /92 j?//j/92 2/
/92 OFFICIAL RECORD COPY Document Name: A:SBOSER
Mr. J. W. Hampton Duke Power Company Oconee Nuclear Station cc:
Mr. A. V. Carr, Esquire Mr. M. E. Patrick Duke Power Company Compliance 422 South Church Street Duke Power Company Charlotte, North Carolina 28242-0001 Oconee Nuclear Site P. 0. Box 1439 J. Michael McGarry, III, Esquire Seneca, South Carolina 29679 Winston and Strawn 1400 L Street, NW.
Mr. Alan R. Herdt, Chief Washington, DC 20005 Project Branch #3 U. S. Nuclear Regulatory Commission Mr. Robert B. Borsum 101 Marietta Street, NW.-Suite 2900 Babcock & Wilcox Atlanta, Georgia 30323 Nuclear Power Division Suite 525 Ms. Karen E. Long 1700 Rockville Pike Assistant Attorney General Rockville, Maryland 20852 North Carolina Department of Justice Manager, LIS P. 0. Box 629 NUS Corporation Raleigh, North Carolina 27602 2650 McCormick Drive, 3rd Floor Clearwater, Florida 34619-1035 Mr. R. L. Gill, Jr.
Licensing Senior Resident Inspector Duke Power Company U. S. Nuclear Regulatory Commission P. 0. Box 1007 Route 2, Box 610 Charlotte, North Carolina 28201-1007 Seneca, South Carolina 29678 Regional Administrator, Region II U. S. Nuclear Regulatory Commission 101 Marietta Street, NW. Suite 2900 Atlanta, Georgia 30323 Mr. Heyward G. Shealy, Chief Bureau of Radiological Health South Carolina Department of Health and Environmental Control 2600 Bull Street Columbia, South Carolina 29201 Office of Intergovernmental Relations 116 West Jones Street Raleigh, North Carolina 27603 County Supervisor of Oconee County Walhalla, South Carolina 29621