United States Nuclear Regulatory Commission - Protecting People and the Environment


LICENSEE: ABB COMBUSTION ENGINEERING         

SITE: ABB COMBUSTION ENGINEERING            EN NUMBER:32762

DOCKET:                                  EVENT DATE: 08-14-97

RX TYPE:                                 EVENT TIME: 00:00

VENDORS:                                NOTIFY DATE: 08-14-97

EMERGENCY CLASS: N/A  REGION: 1 STATE: CT      TIME: 14:24

OPS OFFICER: BOB STRANSKY             

10 CFR SECTION: CCCC  21.21               UNSPECIFIED PARAGRAPH



10 CFR PART 21 REPORT                                            

                                                                 

ENERGY REDISTRIBUTION FACTORS USED IN LARGE-BREAK LOSS OF COOLANT

ACCIDENT ANALYSES DO NOT DIRECTLY REFLECT THE EFFECTS OF         

MODERATOR VOIDING. SPECIFICALLY, THE ENERGY REDISTRIBUTION       

FACTORS ARE UNDER PREDICTED BY 0.5% TO 1.5%. THIS CORRESPONDS TO 

A 20�F TO 60�F INCREASE IN PEAK CLAD TEMPERATURE DURING          

LARGE-BREAK LOSS OF COOLANT ACCIDENTS.                           

                                                                 

THE FOLLOWING UNITS ARE AFFECTED:  PALO VERDE UNITS 1, 2, AND 3; 

SAN ONOFRE UNITS 2 AND 3; WATERFORD UNIT 3; ARKANSAS NUCLEAR ONE 

UNIT 2; CALVERT CLIFFS UNITS 1 AND 2; AND SAINT LUCIE UNIT 2.    



Page Last Reviewed/Updated Thursday, March 29, 2012