TXX-6904, Interim Deficiency Rept CP-87-35 Re Raychem Motor Connection Kits.Initially Reported on 870715.Kits NMCK-2V-35-00,Lots K0770 & K1245 Supplied W/Wrong Size Shim.Evaluation of Kit Acceptability Continuing.Next Rept Expected Before 880112
| ML20236H191 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 10/30/1987 |
| From: | Counsil W TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| CP-87-35, TXX-6904, NUDOCS 8711030505 | |
| Download: ML20236H191 (1) | |
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Ref f.10CFR50'.55(e).
TUELECTRIC-s Executive Vki President
.0c'tob'ed30,1987 wmiam c. counsu
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ft, O. S. Nuclear RegulatorytCommission W
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SUBJECT:
COMANCHE PEAK STEAM ELECT _RIC STATION (CPSES)-
DOCKET NOS. 50-445 AND 50-446 i.
RAYCHEM MOTOR CONNECTIONLKITS SDAR: CP-87-35 (INTERIM REPORT)
H 4
Gentlemen:
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i On July 15, 1987, we verballyIotified your Mr. I. Barnes of a deficiency involving Raychem Motor Connection Ki.ts (Model No'.~.NMCK-2V-35-00)1which'were provided to CPSES with shims whi.ch'may not be. compatible with the use.' range,.
requirements of the supplied bNakout components.
This is'hn!fsterim report i
of a potentially reportable. item under the p'rovis. ions of'10CFR50$(e). - Our.
last interim report was logged TXX-6648, dated: August 13, 1987. $
Motor connection kits are designed to insulate and environmentally s'eal Class
(
1E cable ~ connections to low voltage motors t(pated 1000 volts or less).
The.
A*i kit in question is used when the two conductors'are side by side then. bolted.
To seal this type of assemoly, a breakout, which locks 1.ike'a p' air of;
/
trousers, seals tits legs Laround each conductor,-then a cap is placed.over the assembly.. Since the. niotor conductor is typically _ much 1 smaller than the field cable, a shim is uwd on the motor lead.to increase the -diameter to meet the breakout use range.
n The Raychem Motor Connection Kits NMCK-2V-35-00, Lot' Humber K0770 and K1245.
were supplied with the wrong size shim..1he shim supplied was-.too large and' i
would result in the breakout leg bein'g held.out at a diameterJoutside the qualified use range.
Our evaluation of the acceptability'of these kits is 4
. continuing.
OurnextreportforthisissuewillbesubmittednolaIer~tnaMJanuary-12, 1988.
- M,.
Very t' ruly4yoursc logg [
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W. G.-Counsil-WJH/gj 3
-c - Mr. R. D. Martin, RegioncIk j,'
_.gh Residentinspectors,CPSES](3);
400 North Olive Street. LB 81 Dallas,- Texas' 7320).
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