ML17296A430

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Responds to IE Bulletin 79-11 Re Potential Failure of Westinghouse Type DB-50 & DB-75 Circuit Breakers in Engineered Safety Sys.No Westinghouse Type DB-50 or DB-75 Circuit Breakers in Use
ML17296A430
Person / Time
Site: Palo Verde  Arizona Public Service icon.png
Issue date: 07/27/1979
From: Van Brunt E
ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To: Engelken R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
D.4.01.1, NUDOCS 7909040312
Download: ML17296A430 (2)


Text

AHIZQKKA-lQUGLGAH POD RR !PRVJRC f Post Office Box 21666 Phoenix, Arizona 85036 Pp j

Docket Nos. 50-528, 529, 530 July 27, 1979 ANPP-13558 JMA/TFQ

,Mr. R. H. Engelken, Director U. S. Nuclear Regulatory Commission Region V CJ~

202 Walnut Creek Plaza 1990 North California Boulevard Walnut Creek, California 94596

Subject:

NRC IE Bulletin No. 79-11'ated May 22, 1979 lb File: D.4.01.1; 79-005-026 gpss 4'ear Mr. Engelken:

In reference to your IE Bull.etin No. 79-11, which discusse'd potential failure of Westinghouse type DB-50 and DB-75 circuit breakers in engineered safety -systems, we have completed a review of the Palo Verde Nuclear Generating Station design.

No Westinghouse type DB-50 or DB-75 circuit breakers are being purchased for use at PVNGS. Therefore, the questions in the Bulletin do not apply.

If you have any questions, please advise.

Very truly yours, E. E. Van Brunt, Jr.

APS Vice President, Nuclear Projects ANPP Project Director EEVBJr/TFQ/av 'RC cc: R. L. Robb Office of Inspection im Enforcement J. M. Allen Division of Reactor Inspection Programs D. B. Karner Washington, D.C. 20555 J. A. Roedel F. W. Hartley W. H. Wilson C. E. Ferguson A. C. Rogers L. W. Price gP ~

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