ML19338E308

Responds to IE Bulletin 80-19, Failures of Mercury-Wetted Matrix Relays in Reactor Protective Sys of Operating Nuclear Power Plants Designed by C-E. No mercury-wetted Switches Are Used in Facility safety-related Sys

ML19338E308
Person / Time
Site:	Clinton
Issue date:	08/26/1980
From:	Wuller G ILLINOIS POWER CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
IEB-80-19, L08-80(08-26)-0, U-0177, NUDOCS 8009250457
Download: ML19338E308 (1)

Text

_

Ib U-0177 -

lLLINDIS POWER COMPANY t

LO8-80(08-26)~0

-e-h

500 SOUTH 27TH STREET, DECATUR, ILLINOIS 62525

-August 26, 1980 Mr. James G. Keppler Director, Region III Office of Inspection & Enforcement U.S. Nuclear Regulatory Commission 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 ?.etter of July 31, 1980, whereby you forwarded IE Bulletin No. 80-19 which reported on the failure of mercury-wetted relays (C. P. Clare Model HG2X-1011).

This is to advise you that mercury wetted switches are not used in the Clinton nuclear safety-related systems.

Sincerely, l

G. E. Wuller Supervisor-Licensing Nuclear Station Engineering JPO'B:dl cc:

CPS /DRC H. H. Livermore, NRC Resident Inspector Office of I&E, Division of Reactor Construction Inspection, Washington, D.C.

SEP 02 E60 8009250457

.