ML19344E978

Responds to IE Bulletin 80-19,Revision 1.No mercury-wetted Matrix Relays Are Used or Planned for Use in Reactor Protection Sys

ML19344E978
Person / Time
Site:	Perkins, Cherokee
Issue date:	08/29/1980
From:	Dail L DUKE POWER CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
IEB-80-19, NUDOCS 8009120212
Download: ML19344E978 (1)

Text

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l Mr. J. P. O'Reilly, Director U.S. Nuclear Regulatory Commission, Region II 101 Marietta Street, NW, Suite 3100 Atlanta, Georgia 30303 Re: Cherokee Nuclear Station Docket Nos.: 50-491, 492, & 493 Perkins Nuclear Stnefan Docket Nos.: M 8, 489, & 4 D ;

IE Bulletin 80-19, Rev. 1 Duke File: P81-1412.ll-1

Dear Mr. O'Reilly:

In response to your letter of August 15, 1980, which transmitted Nuclear Regulatory Commission IE Bulletin 80-19, Revision 1, we wish to advise that a review of the designs of Cherokee and Perkins Nuclear Stations has been conducted. This review revealed that no C. P. Clare Model HG2X-10ll mercury-wetted relays are used or planned for use in the logic matrix of the Reactor Protective Systems at these stations.

This review required approximately 27 manhours to complete and report.

Very truly yours, s

L. C. Dail, Vice- esident Design Engineering EKM/pam cc: Director Division of Reactor Operations Inspection

. Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, DC 20555

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