ML20098F708
| ML20098F708 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 09/10/1984 |
| From: | Mangan C NIAGARA MOHAWK POWER CORP. |
| To: | Starostecki R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| (55(E)-84-32, (55(E)-84-32), (NMP2L-0156), (NMP2L-156), 55(E)-84-32, NMP2L-156, NUDOCS 8410030285 | |
| Download: ML20098F708 (2) | |
Text
. _ ______- ______ - __ _ _ - ___ ________-__ _____________ _ ______________
..._ < d.
2 M V NIAGARA RUMOHAWK NIAGARA MOHAWK POWER CORPORATION /300 ERIE BOULEVARD WEST. SYRACUSE, N.Y.13202/ TELEPHONE (315) 4741511 September 10, 1984 (NMP2L 0156)
Mr. R. W. Starostecki, Director U.S. Nuclear Regulatory Comission Region I Division of Project and Resident Programs i
631 Park Avenue King of Prussia, PA 19406 Re:
Nine Mile Point Unit #2 Docket No. 50-410 g
r
Dear Mr. Starostecki:
Enclosed is an interim report, in accordance with 10CFR50.55(e) for the problems concerning high pressure core spray diesel generator. This condition-was reported via tel-con from G. Griffith (Niagara Mohawk Licensing) to P.
Russ of your staff on August 9,1984 Very truly yours, C.V. Mangan Vice President Nuclear Engineering and Licensing CVM/sc xc: Director of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C.
20555 R. A. Gram, NRC Site Inspector Project File (2)
BAD B
I W.>cTL_
7 4
NIAGARA M0 HAWK POWER CORPORKiION NINE MILE POINT - UNIT 2 DOCKET NO. 50-410 Interim Report for Problems Concerning High Pressure Core Spray Diesel Generator
( 55(e)-84-32) l Description of the Problem During a review of the high pressure core spray diesel generator equipment, various modifications to this equipmment were identified which we believe are l
necessary for the proper operation of the high pressure core spray system.
The following safety related problems were identified:
1.
In switchgear 2 ENS *SWG102, current transformer terminals on nonsafety-related short-circuiting terminal block A are not properly spaced and/or separated from similar terminals on safety-related short-circuiting terminal block B.
2.
In relay panel H22-P02B, nonsafety-related terminal block points A-1 and A-2 are not properly spaced and/or separated from safety-related points A-7 and A-8.
i 1
3.
Non-Class 1E station battery monitor relays were connected to the Division III Class 1E battery system with on'iy single fusing.
4.
Improper separation of non-Class 1E panel light power wiring from Class 1E wiring.
5.
GE has identified a problem with its NGV relays, containing defective ohmite mode E potentiometers, that were manufactured I
between October 1,1973, and November 1,1976.
The matter is still under investigation and a final report will be submitted by January 7,1985 n
e
~'
_. - - _ _ - _ _. _ _. _ _. _. _ _ _. - _ _ -