ML19347B196
| ML19347B196 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek, Callaway  |
| Issue date: | 08/29/1980 |
| From: | Petrick N STANDARDIZED NUCLEAR UNIT POWER PLANT SYSTEM |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| IEB-80-19, SLNRC-80-41, NUDOCS 8010010835 | |
| Download: ML19347B196 (1) | |
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SNUPPS Standardised Nucieer Unit Power Mont System 5 Cholte Cherry Road Nicholas A. Petrick Rockwule, Mwyland 20060 Executive Director (301) see4cio August 29, 1980 SLNRC 80-41 FILE:
0278.10 SUBJ:
IE Bulletin No. 80-19 Mr. Boyce Grier Director Region I Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA 19406 i
l Docket Nos:
STN 50-482, STN 50-483, STN 50-486
Dear Mr. Grier:
This letter is submitted in response to the subject IE Bulletin for the GNUPPS Utilities, Kansas Gas and Electric l
Company and Union Electric Company.
Mercury-wetted relays are not used in matrix logic ap-plication in the SNUPPS reactor trip circuitry. The only application of mercury-wetted relays in SNUPPS reactor trip circuitry is in the Westinghouse 7300 protection system equipment.
These relays are hermetically sealed and are used for temperature channel test inputs from resistor thermal. devices ; the relays are not used in scram circuits.
Therefore, no response is required to items 2 and 3 of the Bulletin.
Approximately 30 man-hours were expended in the conduct of the review required by this Bulletin.
Very t
~
you.,
- W M\\ (
Nicholas A. Petrick RLS/mtk cc:
Mr. James G. Keppler, Director, Region III, USNRC Mr. Karl V.
Seyfrit, Director, Region IV, USNRC Director, Division of Reactor Operations Inspection, Office of Inspection and Enforcement USNRC, Washington D.
C.
20555 8010010835
.