United States Nuclear Regulatory Commission - Protecting People and the Environment


LICENSEE: CLINTON POWER STATION              

SITE: CLINTON POWER STATION                 EN NUMBER:33731

DOCKET:                                  EVENT DATE: 01-16-98

RX TYPE:                                 EVENT TIME: 12:00

VENDORS:                                NOTIFY DATE: 02-17-98

EMERGENCY CLASS: N/A  REGION: 3 STATE: IL      TIME: 16:46

OPS OFFICER: DOUG WEAVER              

10 CFR SECTION: CCCC  21.21               UNSPECIFIED PARAGRAPH



10 CFR PART 21 - DEFECTIVE SOLDERING IN A SAFETY-RELATED BATTERY 

CHARGER                                                          

                                                                 

THE BASIC COMPONENTS INVOLVED ARE THE DIVISION 2 SAFETY-RELATED  

BATTERY CHARGER, MODEL 3SC-130-300, AND THE HIGH VOLTAGE CIRCUIT 

CARD, MODEL DSHV120T2-01.  THESE COMPONENTS WERE SUPPLIED TO     

CLINTON POWER STATION BY POWER CONVERSION PRODUCTS.              

                                                                 

THE LICENSEE HAS IDENTIFIED INADEQUATE SOLDERED CONNECTIONS      

THROUGHOUT THE DIVISION 2 BATTERY CHARGER.  IT WAS ALSO NOTED    

THAT THE TIME DELAY FOR THE INSTALLED DSHV CIRCUIT CARD WAS      

APPROXIMATELY 16 SECONDS, THE TIME DELAY FOR THE REPLACEMENT     

CIRCUIT CARD WAS 6 SECONDS, AND THE PURCHASE SPECIFICATION       

REQUIRED A 30-SECOND TIME DELAY.                                 





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