ML13333A314

Repts Insertion of Containment Spray Sys Nozzle Insp Requirement in Section 4.2 of Tech Specs, Safety Injection & Containment Spray Sys Periodic Testing

ML13333A314
Person / Time
Site:	San Onofre
Issue date:	10/30/1978
From:	Baskin K Southern California Edison Co
To:	Ziemann D Office of Nuclear Reactor Regulation
References
NUDOCS 7811060086
Download: ML13333A314 (2)

Text

Southern California Edison Company P. 0. BOX 800 2244 WALNUT GROVE AVENUE ROSEMEAD, CALIFORNIA 91770 K. P. BASKIN TELEPHONE K.P AKNOctober 30, 1978 213-572-1401

MANAGER, GENERATION ENGINEERING Director of Nuclear Reactor Regulation Attention:

Mr. D. L. Ziemann, Chief Operating Reactors Branch #2 Division of Operating Reactors U.S. Nuclear Regulatory Commission r

Washington, DC 20555

\\b a

W4 Gentlemen:

Subject:

Docket 50-206 Periodic Inspection of Spray Nozzles of the Containment Spray System San Onofre Nuclear Generating Station, Unit 1 Reference (1):

Safety Evaluation by the Office of Nuclear Reactor Regulation Supporting Amendment No. 25 to Provision al Operating License No. DPR-13 forwarded by letter from NRC (V. Stello) to SCE (Jack B. Moore) dated April 1, 1977.

(2):

Letter from SCE (Jack B. Moore) to NRC (E. G. Case) dated August 8, 1977 forwarding Amendment No. 64 in Docket No. 50-206 consisting of Proposed Change No.

62 to the Technical Specifications.

(3):

Letter from SCE (J. H. Drake) to NRC (E. G. Case) dated September 30, 1977 forwarding Amendment No.

66 in Docket No. 50-206 consisting of Proposed Change Nos. 61 and 64 to the Technical Specifica tions.

(4):

Letter from NRC (D. L. Ziemann) to SCE (J.H. Drake) dated March 8, 1978 forwarding Amendment No. 31 to Provisional Operating License No. DPR-13.

Reference (1) included the requirement to add to the Technical Specifications, by Cycle 7 startup, technical specifications requiring the visual inspection of spray nozzles in the Contain ment Spray System. Proposed technical specifications which would impose such an inspection requirement were forwarded by Reference (2) as part of technical specifications proposed in connection with the San Onofre Unit 1 Fire Protection Program. The fact 0

0 r

L

Mr. D.

October 30, 1978 that proposed technical specifications forwarded by Reference (2) were responsive to the requirement of Reference (1) was identi fied in Reference (3).

Proposed technical specifications submitted by Reference (2) were approved and issued by the NRC in Reference (4).

Based on recent discussions with representatives of the Regula tory Staff, it is our understanding that the Staff wishes to have the requirement for visual inspection of the spray nozzles of the Containment Spray System included in the surveillance require ments for the Safety Injection and Containment Spray Systems as well as the surveillance requirements for the Fire Protection Systems. Accordingly, we have agreed to the insertion of a Containment Spray System nozzle inspection requirement in Section 4.2 of the Technical Specifications, "Safety Injection and Containment Spray System Periodic Testing," which is consistent with the inspection requirement which is presently included in Section 4.15 of the Technical Specifications, "Fire Protection Systems Surveillance".

Specifically, we understand paragraph 4.2.I.B (2) of the Appendix A Technical Specifications will be incorporated into paragraph 4.2.I.B (1) and a new paragraph 4.2.I.B (2) will be added as follows:

"(2) At least once every second refueling outage an air flow test shall be performed to demonstrate the absence of blockage at each Containment Spray System nozzle."

Sincerely, K. P. Baskin Manager, Generation Engineering