ML19208D137

Responds to IE Bulletin 79-11, Faulty Overcurrent Trip Device in Circuit Breakers for Engineered Safety Sys. Westinghouse Circuit Breakers DP-75 & DO-50 Will Not Be Used w/safety-related Sys

ML19208D137
Person / Time
Site:	Clinton
Issue date:	07/26/1979
From:	Wuller G ILLINOIS POWER CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
U-0100, U-100, NUDOCS 7909280032
Download: ML19208D137 (1)

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U-0100 ILLIN0/S POWEl? COMPANY a g C. LOO ~ISNOI'20)~O h_*j 500 SOUTH 27TH STREET, DECATUR, ILUNOIS 62525

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July 26, 1979 Mr. James G. Keppler Director, Region III Office of Inspection & Enforcement U. S. Nuclear Regulatory Commicsiton 799 Roosevelt Road' Glen Ellyn, Illinois 60137

Dear Mr. Keppler:

Clinton Power Station Units 1 & 2 Docket Nos. 50-461 and 50-462 Construction Permits No. CPPR-137 & CPPR-138 This is in reply to your letter of May 22, 1979, whereby you forwarded IE Bulletin No. 79-11 which reported on a problem en-countered with faulty overcurrent trip devices in circuit breakers.

Please be advised that Westinghouse DB-75 and DB-50 circuit breakers will not be used with any safety related services at the Clinton Power Station.

Sincerely, G. E. Wuller Supervisor - Licensing Generation Engineering Department GEW/jh Director, Division of Reactor Operations Inspection cc:

Office of Inspection & Enforcement, USNRC 1051 185 g\\2o'$1B IU 0928 0037

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