ML17252A275
| ML17252A275 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 03/23/1977 |
| From: | Stephenson B Commonwealth Edison Co |
| To: | James Keppler NRC/RGN-III |
| References | |
| 50-249/1977-4 | |
| Download: ML17252A275 (3) | |
Text
8' Commonw.A. Edison Dresden Nucle~~er Station R.R. #1 Morris, Illinois 60450 Telephone 815/942-2920 BBS Ltr. #77-239 March 23, 1977 Mr. James G. Keppler, Regional Director Directorate of Regulatory Operations - Region I I I U. S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137 (nclosed please find Reportable. Occurrence report number 50-249/1977-4.
This repo{t is being sub~itted to your office in a~cordance with the Dresden Nuclear Power Station Technical Specifications, Section 6.6.B.
BBS: j o Enclosure cc:
Director of Inspection & Enforcement Director of Management Information & Program Cohtrol Fi le/NRC MAR 2 5 1977
LICENSEE EVENT REPORT CONtROL BLOCK: l 1 e I I I I I.**
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CAUSE DESCRIPTION (Continued)
It is believed that the water originated from a leaking area cooler (Which has since been repaired) located above the jun~tion box.
The switch was cleaned and reset to trip at the correct setpoint.
In addition, the cable penetr(~t~,Q~ri:from the junction box was sealed.
Examina-tion of the hearby switches indicated that water in~leakage was limited to this particu~ar switch.
DPIS 3-261-26 is a Barton model 278 unit with a range of 0 - 200 psig.