ML19338E303

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 Relays Are Being Used in Reactor Protection Sys

ML19338E303
Person / Time
Site:	Marble Hill
Issue date:	08/28/1980
From:	Shields S PSI ENERGY, INC. A/K/A PUBLIC SERVICE CO. OF INDIANA
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
IEB-80-19, NUDOCS 8009250447
Download: ML19338E303 (1)

Text

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q r-EL PUBLIC SERVICE INDIANA August 28, 1980 S. W. Shields Senior Vice President -

Nuclear Division Mr. James G. Keppler Docket Nos.:

STN 50-546 U.S. Nuclear Regulatory Commission STN 50-547 Region III Construction Permit Nos.: CPPR-170 799 Roosevelt Road CPPR-171 Glen Ellyn, IL 60137 Marble Hill Nuclear Generating Station - Units 1 and 2 IE Bulletin 80-19

Dear Mr. Keppler:

In response to IE Bulletin Number 80-19, Revision 1, Public Service Company of I ndian a, Inc., (PSI) has determined that no C. P. Clare Model HG2X-1011 mercury-wetted relays are being used in the logic matrix of the Reactor Protection System.

Per your request, PSI estimates that approximately 10 manhours were expended in the review and preparation of reports required by this Bulletin.

If you have any questions regarding this matter, please contact me at your convenienc e.

Sincerely,

//

S.W. Shields GAS /dks cc: Director, Division of Reactor Operations Inspection Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C.

20555 E.R. Schweibinz, P.E.

J.J. Harrison 2

SEP Og ng P.O. Box 190, New Washington, Indiana 47162 812. 293.4441 80_09250447 J