Part 21 Report - 1995-125
LICENSEE: SOUTHERN CALIFORNIA EDISON & SAN DI
SITE: SAN ONOFRE 1 2 3 EN NUMBER:28755
DOCKET: 05000206 05000361 05000362 EVENT DATE: 03-14-95
RX TYPE: PWR PWR PWR EVENT TIME: 00:00
VENDORS: W-3-LP CE CE NOTIFY DATE: 05-03-95
EMERGENCY CLASS: N/A REGION: 4 STATE: CA TIME: 15:25
OPS OFFICER: GREG SCARFO
10 CFR SECTION: CDEG 21.21(c)(3)(i) DEFECTS/NONCOMPLIANCE
UNIT SCRAM RX INIT INITIAL MODE CURR CURRENT MODE
CODE CRIT PWR PWR
1 N N 0 DECOMMISSIONED 0 DECOMMISSIONED
2 N N 0 REFUELING 0 REFUELING
3 N Y 99 POWER OPERATION 99 POWER OPERATION
INCORRECT LUGS USED ON SWITCHGEAR.
IT WAS DETERMINED THAT THE AMP INCORPORATED INSULATED LUGS USED
WITH THE #14 GAUGE WIRE IN ABB 4160V-5HK AND 480VK LINE
SWITCHGEAR DELIVERED IN 1975 BY ITE ARE OVERSIZED AND COULD FAIL
DUE TO "PULL-OUT" FROM ANY UNUSUAL LOAD APPLICATION. THE CAUSE OF
THE DEFECT IS BELIEVED TO BE THE MISMARKING OF THE LUGS, WHICH
WERE MARKED AS "#12-10". THE MISMARKED LUGS WERE SUPPLIED WITH
SWITCHGEAR THAT WAS DELIVERED TO THE PLANT IN 1976.
Page Last Reviewed/Updated Wednesday, March 24, 2021