ML13333A329
| ML13333A329 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 12/07/1978 |
| From: | Ziemann D Office of Nuclear Reactor Regulation |
| To: | James Drake SOUTHERN CALIFORNIA EDISON CO. |
| Shared Package | |
| ML13333A330 | List: |
| References | |
| TASK-03-05.A, TASK-3-5.A, TASK-RR NUDOCS 7812140299 | |
| Download: ML13333A329 (3) | |
Text
DEC 0 7 1978 Docket Nd i50-5O:,)
Mr. James H. Drake Vice President Southern California Edison Company 2244 Walnut Grove Avenue Post Office Box 800 Rosemead, California 91770
Dear Mr. Drake:
RE:
PIPE BREAKS INSIDE CONTAINMENT FOR THE SAN ONOFRE 1 FACILITY General Design Criterion 4 of Appendix A to Title 10, Code of Federal Regulations., Part 50, requires in part that:
. structures, systems and components shall be designed to accomodate the effects of loss-of coolant accidents and shall be appropriately protected against dynamic effects.
Acceptable methods of complying with this regulation are, in part, provided in the Standard Review Plan Section 3.6.2 and Regulatory Guide 1.46 (Protection Against Pipe Whip Inside Containment).
As you are aware, the Systematic Evaluation Program incl.udes-a topic on the Effects of Pipe Break on Structures, Systems and Components Inside Containment (III 5.A) which stems from this basic regulation and current licensing criteria.
Our review of material currently in your docket has not revealed sufficient information for technical evaluation of the subject. As we have previously stated, it would be necessary for the licensees to provide some evaluation for our review of certain SEP topics.
We have determined that your assistance is needed to supply technical information which will allow us to compare your plant design to current criteria and to evaluate the significance of potential deviations. Enclosed is a copy of a letter you received earlier, which summarized.current criteria and discusses-the SEP review approach presently planped.
A meeting will be sc$4duled to discuss this topic with you. As soon as possible, but at/Teast two weeks prior to that meeting, you should provide any pertj-rent information you may have, by reference to docketed material or copies of additional relevent studies or 'analyses which may not have been docketed. At this meeting, you should be prepared to discuss a program for resolving this topic. Based upon the lack of docketed information, we expect this program may require substantial effort -on your part.
781-214 0x
Southern California Edison Company
-2 DEC 071978 If you have any questions prior to the meeting, please call the assigned Project Manager.
Sincerely, Origfatl Signed by:
Dennis L. Ziemann Dennis L. Ziemann, Chief Operating Reactors Branch #2 Division of Operating Reactors
Enclosure:
DISTRIBUTION:
As stated Docket(50-206).
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Southern Califor Edison Company December 7, 1978 cc Rollin E. Woodbury, Vice President and General Counsel Southern California Edison Company Post Office Box 800 Rosemead, California 91770 David R. Pigott Samuel B. Casey Chickering & Gregory Three Embarcadero Center Twenty-Third Floor San Francisco, California 94111 David W. Gilman Robert G. Lacy San Diego Gas & Electric Company P. 0. Box 1831 San Diego, California 92112 Mission Viejo Branch Library 24851 Chrisanta Drive Mission Viejo, California 92676 U.- S. Nuclear Regulatory Commission ATTN:
Robert J. Pate Post Office Box 4167 San Clemente, California 92672 KMC Inc.
ATTN:
Mr. Jack McEwen 1747 Pennsylvania Avenue, N.W.
Suite 1050 Washington, D. C. 20006