ML13310A779

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Provides Status of Actions Requested in 830401 Clarification of 821120 SER on Environ Qualification of safety-related Electrical Equipment. Equipment Environ Qualification, Technical Evaluation Rept No Longer Considered Proprietary
ML13310A779
Person / Time
Site: San Onofre Southern California Edison icon.png
Issue date: 05/20/1983
From: Baskin K
Southern California Edison Co
To: Crutchfield D
Office of Nuclear Reactor Regulation
References
TAC-42516 IEB-79-01B, IEB-79-1B, NUDOCS 8305240501
Download: ML13310A779 (2)


Text

Southern California Edison Company P. 0.

BOX 800 2244 WALNUT GROVE AVENUE ROSEMEAD, CALIFORNIA 91770 K. P. BASKIN TELEPHONE MANAGER OF NUCLEAR ENGINEERING,

. 20, 1983 572.1401 SAFETY. AND LICENSING Director of Nuclear Reactor Regulation Attention:

Mr. D. M. Crutchfield, Chief Operating Reactors Branch No. 5 Division of Licensing U. S. Nuclear Regulatory Commission Washington, D.C.

20555 Gentlemen:

Subject:

Docket No. 50-206 Environmental Qualification of Electrical Equipment San Onofre Nuclear Generating Station Unit 1 Your letter dated April 1, 1983 provided us with clarification of the Safety Evaluation Report for San Onofre Unit 1 dated November 30, 1982.

The letter requested that we perform certain actions within 30 days of receipt of the letter. Those actions included:

1. Review our 30 day SER response (dated January 18, 1983) in light of the clarification of justification for continued operation provided in 10 CFR 50.49(i).
2. Address equipment in NRC Category IV (Documentation not made available) for which justification for continued operation was not previously provided.
3. Address equipment in NRC Category II.B (Equipment Not Qualified) to resolve as soon as possible, and
4. Identify that information in the Franklin TER which is considered proprietary.

We have reviewed the 30 day SER response dated January 18, 1983 in light of the guidelines provided in 10 CFR 50.49(i).

The justifications provided in the 30 day SER response are still applicable.

oo The Franklin TER indicates that Category IV, Documentation Not Made CIO Available, included the following items:

co 0

1.

Recirculation Flow Control Valves -

FCV 1115 D, E and F

2. Charging Pumps - G8A and B
3.

Various Electrical Cable

4. Safety Injection Valves positioners XA CoPY Has Been Sent to PDR

Mr. D.

May 20, 1983 Justifications for continued operation for these items were provided in our February 24, 1982 submittal.

The justifications have been reviewed and are still applicable with the exception of the Safety Injection Valves positioners.

The justification for.the positioners in the February 24, 1982 letter indicated that'the positioners were qualified based on analysis. As a result of our recent pressure and temperature analysis of high energy line breaks outside containment the positioners are subjected to a higher temperature in the event of a line break in their vicinity. The results of the pressure and temperature analysis were provided to you in our letter dated March 2, 1983. Prior to the justification provided in the February 24, 1982 letter, the justification for continued.operation for the positioners was provided in our October 31, 1980 submittal.

That justification is based on the positioners for each train being located at opposite ends of the turbine building. Therefore, a high energy line break in the vicinity of one train of positioners would not affect the other train of positioners. The discussion provided in the October 31, 1980 submittal forms the basis for continued operation and should be used in lieu of the February 24, 1982 submittal.

Regarding equipment classified as Category II.B, Equipment Not Qualified, there is no equipment at San Onofre Unit 1 in this category.

We have reviewed the Franklin TER for proprietary information.

Pages 3a for Item 44 and 5f for Item 59 are identified in the TER as having proprietary information. Based on our review of the pages we do not consider the information contained therein to be proprietary.

The letter also requested that we include additional information regarding equipment identification and qualification programs in our May 20, 1983 reponse required by 10 CFR 50.49(g).

The requested information will be included in the preparation of that response.

If you have any questions regarding the information provided here, please let me know.

Very truly yours,