ML19291C161
| ML19291C161 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 01/09/1980 |
| From: | Hoffman D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| IEB-79-28, NUDOCS 8001230047 | |
| Download: ML19291C161 (1) | |
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January 9,1980 Mr James G Keppler Office of Inspection and Enforcement Region III US Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 LOCKET 50-155 - LICENSE DPR BIG ROCK POINT PLANT - CONSUMERS POWER COMPANY RESPONSE TO IE BULLETIN 79-28: POSSIBLE MAL-FUNCTION OF NAMCO MODEL EA180 LIMIT SWITCHES AT ELEVATED TEMPERATUPIS Below please find Consumers Power Cor::pany's response to IE Bulletin 79-28 (Possible Malfunction of NAMCO Model EA180 Limit Switches at Elevated Temperatures):
Big Rock Point has eight (8) NAMCO EA180 switches in its Reactor De-pressurizing System.
They are position indicators for CV h180, CV-k181, CV k182, and CV k183.
Four (4) of the switches which are for open indication are EA180 22302, dated 02 78C; the other four (4) which are for close indication are EA180 21302 dated 02 78D.
Therefore, no further action is required since our switches were purchased before the time frame specified in the IE Bulletin 79-28.
j David P Hoffman Nuclear Licensing Adr:inistrator CC:
Director, Office of Nuclear Reactor Regulation Director, Office of Inspection and Enforcement 1791 166 39688 gcu 3o oQ m.
.