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Due to a lapse in appropriations, the NRC has ceased normal operations. However, excepted and exempted activities necessary to maintain critical health and safety functions—as well as essential progress on designated critical activities, including those specified in Executive Order 14300—will continue, consistent with the OMB-Approved NRC Lapse Plan.

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

Page Last Reviewed/Updated Wednesday, March 24, 2021