ML19332A840
| ML19332A840 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Byron, Braidwood, Quad Cities, Zion, LaSalle  |
| Issue date: | 08/29/1980 |
| From: | Rausch T COMMONWEALTH EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| IEB-80-19, NUDOCS 8009180466 | |
| Download: ML19332A840 (1) | |
Text
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7 A
- Commonw:cith Edison g.
one First National PI'z?, Chic #go, lilinois C
s A v /7 Adduss Riply tr P;st Ofhca Box 767
'l;f;[/ ChicIgo, Illinois 60690 August 29, 1980 Mr. James G. Keppler, Director Directorate of Inspection and Enforcement - Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road G,len Ellyn, IL 60137
Subject:
Response to IE Bulletin 80-19 C
regarding " Failures of Mercury-Wetted Matrix Relays in Reactor Protective Systems of Operating Plants Designed by Combustion Engineering,
Dresden Station Units 1, 2, and 3; Quad Cities. Station Units 1 and 2; Zion Station Units 1 and 2;
' LaSalle County Station Units 1 and 2; Byron Station Units 1 and 2; and Braidwood Station Units 1 and 2.
NRC Docket Nos. 50-10/237/249, 50-254/265, 50-295/304 50-373/374, 50-454/455 and 50-456/d57 Reference (a):
J. G. Keppler letter to C. Reed dated July 31, 1980.
Dear Mr. Keppler:
Commonwealth Edison Company has reviewed the information contained in Reference (a) for applicability to the subject plants.
It has been determined that no mercury wetted relays are used in the reactor protection system for any of those plants.
Therefore, no further action is judged to be required.
In the event you have any further questions, please direct them to this office.
Approximately 24 man-hours were re-quired in the review of the subject bulletin and in the preparation of this report.
i Very truly yours, hk M.sb and Thomas J. Rausch Nuclear Licensing Administrator Special Projects Division of Reactor Operations Inspection cc:
Office of Inspection and Enforcement SEP 021989 8 0 09180 M' "
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