United States Nuclear Regulatory Commission - Protecting People and the Environment


LICENSEE: ILLINOIS POWER CO.                 

SITE: CLINTON 1                             EN NUMBER:33450

DOCKET: 05000461                         EVENT DATE: 12-23-97

RX TYPE: BWR                             EVENT TIME: 20:04

VENDORS: GE-6                           NOTIFY DATE: 12-23-97

EMERGENCY CLASS: N/A  REGION: 3 STATE: IL      TIME: 20:04

OPS OFFICER: JOHN MacKINNON           

10 CFR SECTION: CCCC  21.21               UNSPECIFIED PARAGRAPH

UNIT  SCRAM   RX   INIT  INITIAL MODE     CURR   CURRENT MODE

      CODE   CRIT  PWR                    PWR

 1    N       N      0   COLD SHUTDOWN      0   COLD SHUTDOWN  



CLINTON POWER STATION SUBMITTED A LICENSEE EVENT REPORT (LER NO. 

97-028-00) WITH A PART 21 IN ITS BODY AND THE LICENSEE WANTED THE

PART 21 PORTION OF THE LER REPORTED.                             

                                                                 

ON NOVEMBER 26, 1997, ILLINOIS POWER DETERMINED THAT ASEA BROWN  

BOVERI (ABB) FAILED TO NOTIFY ILLINOIS POWER OF A PROBLEM WITH   

THE QUALIFICATION OF POWER SHIELD TRIP UNITS SUPPLIED WITH ABB   

480-VOLT K-LINE CIRCUIT BREAKERS. THIS ISSUE WAS DETERMINED TO BE

POTENTIALLY REPORTABLE UNDER 10 CFR PART 21. ILLINOIS POWER HAS  

COMPLETED EVALUATION OF THIS ISSUE AND CONCLUDES THAT IT IS      

REPORTABLE UNDER THE PROVISIONS OF 10 CFR PART 21.               

                                                                 

ILLINOIS POWER IS PROVIDING THE FOLLOWING INFORMATION IN         

ACCORDANCE WITH 10 CFR PART 21.21(c)(4). INITIAL NOTIFICATION OF 

THIS MATTER WILL BE PROVIDED BY FACSIMILE OF THIS LETTER TO THE  

NRC OPERATIONS CENTER IN ACCORDANCE WITH 10 CFR PART 21.21(c)(3) 

WITHIN 2 DAYS OF THE DATE THE RESPONSIBLE OFFICER APPROVES THIS  

REPORT.                                                          

                                                                 

(i) JOHN G. COOK, SENIOR VICE PRESIDENT OF ILLINOIS POWER        

COMPANY, CLINTON POWER STATION HIGHWAY 54, 6 MILES EAST, CLINTON,

ILLINOIS, 61727, IS INFORMING THE NRC OF A CONDITION REPORTABLE  

UNDER THE PROVISIONS OF 10 CFR PART 21 BY MEANS OF THIS REPORT.  

                                                                 

(ii) THE BASIC COMPONENT INVOLVED IN THIS REPORT IS THE          

QUALIFICATION OF THE POWER SHIELD TRIP UNITS ASSOCIATED WITH ABB 

480-VOLT K-LINE SAFETY-RELATED CIRCUIT BREAKERS.                 

                                                                 

(iii) THE POWER SHIELD TRIP UNITS ASSOCIATED WITH ABB 480-VOLT   

K-LINE SAFETY RELATED CIRCUIT BREAKERS WERE SUPPLIED BY ABB.     

                                                                 

(iv) AS DISCUSSED IN THE DESCRIPTION OF EVENT PORTION OF THIS    

REPORT THE NATURE OF THE CONDITION IS THE FAILURE TO NOTIFY      

ILLINOIS POWER OF THE PROBLEM WITH THE QUALIFICATION OF THE POWER

SHIELD TRIP UNITS ASSOCIATED WITH ABB 480-VOLT K-LINE            

SAFETY-RELATED CIRCUIT BREAKERS.                                 

                                                                 

AS DISCUSSED IN THE ANALYSIS OF EVENT PORTION OF THIS REPORT,    

FAILURE OF THE POWER SHIELD TRIP UNITS ASSOCIATED WITH ABB       

480-VOLT K-LINE SAFETY-RELATED CIRCUIT BREAKERS COULD CAUSE THE  

CIRCUIT BREAKERS TO NOT PROPERLY PERFORM THEIR SAFETY FUNCTION.  

                                                                 

(v) ON NOVEMBER 26, 1997, ILLINOIS POWER IDENTIFIED THAT THEY    

WERE NOT NOTIFIED OF THE PROBLEM WITH QUALIFICATION OF THE POWER 

SHIELD TRIP UNITS ASSOCIATED WITH ABB 480-VOLT K-LINE            

SAFETY-RELATED CIRCUIT BREAKERS AND ILLINOIS POWER DETERMINED    

THAT THIS ISSUE WAS POTENTIALLY REPORTABLE UNDER 10 CFR PART 21. 

                                                                 

(vi) THIS ISSUE AFFECTS THE POWER SHIELD TRIP UNITS ASSOCIATED   

WITH ABB 480-VOLT K-LINE SAFETY-RELATED CIRCUIT BREAKERS.        

ILLINOIS POWER IS AWARE THAT A 10 CFR PART 21 NOTIFICATION WAS   

MADE BY ABB TO THE NRC ON JULY 28, 1994, ON THIS ISSUE. HOWEVER, 

ILLINOIS POWER WAS NOT NOTIFIED BY ABB OF THIS ISSUE.            

                                                                 

(vii) THE CORRECTIVE ACTION THAT ILLINOIS POWER IS TAKING FOR    

THIS EVENT IS DISCUSSED IN THE CORRECTIVE ACTION PORTION OF THIS 

REPORTS (SEE LER REPORT SENT BY CLINTON).                        

                                                                 

(viii) ILLINOIS POWER HAS NO ADDITIONAL INFORMATION TO OFFER.    

                                                                 

CLINTON POWER STATION MADE AN EVENT NOTIFICATION TO THE NRC      

OPERATION CENTER CONCERNING THIS ISSUE ON 11/26/97 AT 1436 EST   

AND THE ITS ASSIGNED EVENT NUMBER IS 33317.                      





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