ML20054B477
| ML20054B477 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 04/09/1982 |
| From: | Wells D DETROIT EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| REF-PT21-82-611-000 10CFR-050.55E, 10CFR-50.55E, EF2-57462, PT21-82-611, NUDOCS 8204160543 | |
| Download: ML20054B477 (2) | |
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Category:DEFICIENCY REPORTS (PER 10CFR50.55E & PART 21)
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Donald A. Wells gg
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Edison Eind==
April 9,,,1 3
EP2-57j2 og 9
GriCEIVED Mr. James G. Keppler, Director c;
Region III gpg1 51982 5 $
U.S. Nuclear Regulatory Cmmission ggnrMct 799 Roosevelt Road V,
7::: Tir sa 7p Glen Ellyn, Illinois 60137
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/
Subject:
Interim Report of 10CFR50.55(c) Item on Battery Cables DJ61 '"
Dear Mr. Keppler:
On March 12, 1982, Detroit Edison's Mr. J. Doyle Ryan, Quality Assurance i
Engineer, telephoned Mr. John Neisler of NRC-Region III, to report on a problem with Battery Cables at the Fermi 2 site.
During the course of a review of the D.C. system for battery load curve data, it was discovered that smo cables were inadequately sized. The circuits are primarily associated with motor operated valves arxl switch gear, where long lengths of cable were used. Approximately 35 circuits are affected. The repair and/or redesign shall consist of: (1) Replace-ment of the cable with a larger size cable, or (2) Install interposing relays to reduce current through long control circuits. A precise count of affected circuits and a schedule for repair will be available after performance of a battery discharge test to establish the minimum D.C.
system voltage.
Another report on this item, either interim or final, is scheduled to be sent to you on or before August 6,1982. If you have questions concerning this matter, please contact Mr. II.A. Walker, Supervisor-Construction Quality Assurance.
Very truly yours,
,e l
a DAW /IIAW/cp 8204160543 820409 J
PDR ADOCK 05000341 S
PDR APR121982
<o Mr. James G. Keppler, Director April 9, 1982 Page TWo EF2-57462 cc: Mr. Richani DeYoung, Director Office of Inspection and Enforcement Division of Reactor Inspection Programs U.S. Nuclear Regulatory Cmmission Washington, D.C. 20555 Mr. Bruce Little, Resident Inspector U.S. Nuclear Regulatory Cm mission 6450 North Dixie Highway Newport, Michigan 48166