ML14135A249
| ML14135A249 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 12/31/1981 |
| From: | Crutchfield D Office of Nuclear Reactor Regulation |
| To: | Dietch R Southern California Edison Co |
| Shared Package | |
| ML13317A806 | List: |
| References | |
| TASK-08-04, TASK-8-4, TASK-RR LSO5-81-12-104, NUDOCS 8201110004 | |
| Download: ML14135A249 (4) | |
Text
Docket No. 50-206 LS05-81 Mr. R. Dietch Vice President Nuclear Engineering and Operations Southern California Edison Company 2244 Walnut Grove Avenue Post Office Box 800 Rosemead, California 91770
Dear Mr. Dietch:
SUBJECT:
SEP TOPIC VIII-4, SAFETY EVALUATION REPORT ON ELECTRICAL PENETRATIONS OF REACTOR CONTAINMENT (SAN ONOFRE PLANT) is our contractor's final Technical Evaluation of this topic for your plant. The report has been modified to reflect the additional information provided by the references listed in Section 5 of Enclosure 1. is our Final Safety Evaluati'n-Report. Enclosure 2 is based on Enclosure 1. As a result of our contractor's work, the staff has determined that the design of electrical protection circuits for containment penetrations does not meet current licensing criteria.
Accordingly, the staff recommends changes in the design of electrical penetra tion protection. The need to actually implement these changes will be deter mined during the integrated safety assessment. This safety evaluation may be revised in the future if your facility design is changed or if NRC criteria relating to this topic are modified before the integrated assessment is com pleted.
Sincerely, Dennis M. Crutchfield, Chief 8201110004 811231 Operating Reaftors Branch No. 5 820111000 000 Division of Licensing PDR AD)OCK 05000206 irosure:
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Docket No. 50-206 LS05-81 Mr. R. Dietch Vice President Nuclear Engineering and Operations Southern California Edison Company 2244 Walnut Grove Avenue Post Office Box 800 Rosemead, California 91770
Dear-Mr. Dietch:
SUBJECT:
SEP TOPIC VIII-4, SAFETY EVALUATION REPORT ON ELECTRICAL PENETRATIONS OF REACTOR CONTAINMENT (SAN ONOFRE PLANT) is our contractor's final Technical Evaluation of this topic
-for your plant-, The report has been modified to reflect the additional information provided by the references listed in Section 5 of Enclosure 1. is our Final Safety Evaluation Report. Enclosure 2 is based on Enclosure 1. As a result of our contractor's work, the staff has determined that you have not satisfied the conditions of our June 30, 1981 letter.
Within 30-days of receipt of this letter you should provide us with a pro pos)1' showing how you will bring the design of San Onofre Unit 1 into conformance with current safety criteria or show that you have made accep table progress in evaluating the adequacy of all electrical penetrations (in accordance with the positions attached to our June letter).
If you wish to claim credit for meeting the positions issued in June, you must provide the response that was requested by that letter.
The reporting and/or recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P. L.96-511.
Sincerely, Dennis M. Crutchfield, Chief Operating Reactors Branch No. 5 Division'of Licensing U SEP SEP:SL SEP:BC ORB#5 PM ORB#5 C AD:SA:DL OFFICE)
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0 UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 December 31, 1981 Docket No. 50-206 LS05-81-12-104 Mr. R. Dietch.
Vice President Nuclear Engineering and Operations Southern California Edison Company 2244 Walnut Grove Avenue Post Office Box 800 Rosemead, California 91770
Dear Mr. Dietch:
SUBJECT:
SEP TOPIC VIII-4, SAFETY EVAULATION REPORT ON ELECTRICAL PENETRATIONS OF REACTOR CONTAINMENT (SAN ONOFRE PLANT) is our contractor's final Technical Evaluation of this topic for your plant. The report has been modified to reflect the additional information provided by the references listed in Section 5 of Enclosure 1. is our Final Safety Evaluation Report. Enclosure 2 is based on Enclosure 1. As a result of our contractor's work, the staff has determined that the design of electrical protection circuits for containment penetrations does not meet current licensing criteria.
Accordingly, the staff recommends changes in the design of electrical penetra tion protection. The need to actually implement these changes will be deter mined during the integrated safety assessment. This safety evaluation may be revised in the future if your facility design is changed or if NRC criteria relating to this topic are modified before the integrated assessment is com pleted.
Sincerely, Dennis M. Crutchfield, Chief
- FOperating Reactors Branch No. 5 Division of Licensing
Enclosure:
As stated cc w/enclosure:
See next page
Mr. R. Dietch Charles-R. Kocher, Esquire Assistant General Counsel James Beoletto, Esquire Southern California Edison Company Post Office Box 800 Rosemead, California 91770 David R. Pigott, Esquire Orrick, Herrington & Sutcliffe 600 Montgomery Street San Francisco, California 94111 Harry B. Stoehr San Diego Gas & Electric Company P..0. Box 1831
-San Diego, California.92112 Resident Inspector/San Onofre NPS c/o U. S. NRC P. 0. Box 4329 San Clemente, California 92672 Mission Viejo Branch Library 24851 Chrisanta Drive Mission Viejo, California 92676 Mayor City of San Clemente San Clemente,.California 92672 Chairman Board of Supervisors County of San Diego San Diego, California 92101 California Department of Health ATTN: Chief, Environmental Radiation Control Unit Radiological Health Sect-ion 714-P Street, Room 498 Sacramento, California 95814 U. S. Environmental Protectioi Agency Region IX Office ATTN: Regional Radiation Representative
.215 Freemont Street.
San Francisco, California.94111