ML20112G786
| ML20112G786 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 02/25/1985 |
| From: | Mangan C NIAGARA MOHAWK POWER CORP. |
| To: | Starostecki R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| (55(E)-85-01), (55(E)-85-1), (NMP2L-0348), (NMP2L-348), NUDOCS 8504020001 | |
| Download: ML20112G786 (2) | |
Text
., -9 NUMOHAWK Y NIAGARA NIAGARA MOHAWK POWER CORPORATION /300 ERIE BOULEVARD WEST. SYRACUSE. N.Y.13202/ TELEPHONE (315) 4741511 February 25, 1985 (NMP2L 0348)
Mr. R. W. Starostecki, Director U. S.' Nuclear Regulatory Comission Region I Division of Project and Resident Programs 631 Park Avenue King of Prussia, PA 19406 Re: Nine Mile Point - Unit 2 Docket No. 50-410
Dear Mr. Starostecki:
Enclosed is a final report in accordance with 10CFR50.55(e) for the problem concerning the emergency diesel generator control panels wiring.
This problem was reported via tel-con to W. Lazarus of your office on January 24, 1985.
Very truly yours, C. V. Mangan Vice President Nuclear Engineering and Licensing CVM/GG:cla xc: Director of Inspection and Enforcement U. S. Nuclear Regulatory Commissior.
Washington, DC 20555 R. A. Gramm, NRC Resident Inspector Project File (2) 85a*1888k Bl88lhoL S
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NIAGARA M0 HAWK POWER CORPORATION NINE MILE POINT - UNIT 2 DOCKET NO. 50-410 Final Report for a Problem Concerning the Diesel Generators Control Panels Wiring (55(e)-85-01)
Description of the Problem An inspection of the emergency diesel generator control panels 2CES*IPNL406, 407, and 412 identified the following wiring deficiencies:
1.
Bad crimps, strand damage, and nicked conductors 2.
Improper wire identification 3.
Excessive space between lug and insulation 4.
Insulation not crimped.
Analysis of Safety Implications An evaluation to determine the actual termination / connector configurations (e.g., exact number of broken strands, depth of nicks, gap between the wire insulation and lug barrel) was not performed because the corrective action outlined below have been/will be taken.
However, if the deficiencies were of a degree and extent that could have prevented the panels from perfoming their design function, the problem could have resulted in the loss of Division I and/or Division II diesel generator systems and safe operation of the plant could have been adversely affected.
Corrective Action The subject wiring deficiencies were identified on Nonconformance and i.
Disposition Reports No. 8568, 8569 and 9436.
Nonconfomance and Disposition Reports No. 8568 and 8569 have been closed.
The remaining work will be in accordance with the disposition of Nonconformance and Disposition Report No. 9436.
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