United States Nuclear Regulatory Commission - Protecting People and the Environment

Information Notice No. 88-46: Licensee Report of Defective Refurbished Circuit Breakers

                                  UNITED STATES
                          NUCLEAR REGULATORY COMMISSION
                      OFFICE OF NUCLEAR REACTOR REGULATION
                            WASHINGTON, D.C.  20555 

                                  July 8, 1988


Information Notice No. 88-46:  LICENSEE REPORT OF DEFECTIVE REFURBISHED 
                                   CIRCUIT BREAKERS 


Addressees: 

All holders of operating licenses or construction permits for nuclear power 
reactors. 

Purpose: 

This information notice is being provided to alert addressees of licensee 
reported information that defective refurbished electrical equipment, such 
as circuit breakers (CBs), may have been supplied to nuclear power plants.  
It is expected that recipients will review this information for applicability 
to their facilities and consider actions, as appropriate, to avoid similar 
problems.  However, suggestions contained in this information notice do not 
constitute NRC requirements; therefore, no specific action or written response
is required.

Description of Circumstances: 

Pacific Gas and Electric Company (PG&E) has informed NRC that it placed a 
purchase order for 30 new, non-safety-related, molded-case, KHL 36125-type 
CBs manufactured by the Square D Company (Square D) with a local electrical 
distributor.  These CBs were intended for use in non-safety-related applica-
tions at PG&E's Diablo Canyon Nuclear Power Plant. 

According to PG&E, the distributor in turn placed the order with a local sup-
plier who bid the lowest price and promised the quickest delivery.  The CBs 
were delivered directly to the Diablo Canyon plant by the supplier; the dis-
tributor did not have an opportunity to inspect the CBs.  Square D, aware of 
the purchase order, questioned its failure to receive an order for the unique 
vintage KHL 36125-type CBs.  With PG&E's permission, Square D inspected the 
CBs and determined that PG&E had been given refurbished, rather than new, CBs.
Square D tested and performed detailed examinations of the CBs, and the 
results reported by PG&E follow. 

A.   Physical Examination

     The yellow side labels used on the CBs were suspect in that the CB model 
     numbers were typed on the labels whereas authentic labels are preprinted.
     The CBs departed from normal appearance in other respects as well.



8807080006
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                                                                 Page 2 of 3


     The individual CB cases and each of the CB components appeared to be 
     Square D products; however, the individual CBs incorporated components 
     of different years of manufacture.  Each CB bore evidence of having been 
     opened and reassembled.

B.   Electric Testing

     Square D subjected the CBs to five electrical tests.  None of the CBs 
     complied with Square D or Underwriters' Laboratory (UL) specifications 
     for all of the tests, and several of the CBs were out of tolerance on 
     each of the tests.  At least four of the CBs failed to trip under circum-
     stances in which they are designed to trip.

Discussion: 

In the past, there have been instances in which licensees purchased commercial-
grade components, such as CBs, relays, trip units, and other electrical compo-
nents, from electrical distributors and have received components that did not 
meet the original purchase order requirements.  NRC has received additional 
information indicating that the problem of surplus or defective refurbished 
CBs may also apply to CBs sold under other manufacturers' names (e.g., General 
Electric, Westinghouse, ITE, Cutler Hammer, and Sylvania).  

The electrical suppliers involved in refurbishing and sales of circuit breakers,
including the Diablo Canyon, Square D circuit breakers, apparently include 
five California corporations.  These companies are (1) General Circuit Breaker 
& Electric Supply, Inc., (2) HLC Electric Supply Co., Inc., (3) Pencon Inter-
national, Inc., doing business as General Magnetics/Electric Wholesale, (4) 
California Breakers, Inc., and (5) Anti-Theft Systems, Inc., doing business 
as ATS Circuit Breakers and as AC Circuit Breaker-Electrical Supply.  

NRC has an investigation and vendor inspection in progress at the above compa-
nies.  On the basis of the information developed to date, a preliminary list 
of customers of the five companies including a list of nuclear utilities 
(where available) is provided in Attachment 1.  Attachment 2 contains a list 
of original equipment manufacturers whose names may have been used on surplus 
or refurbished equipment sold as new equipment.  The information included in 
Attachments 1 and 2 is only preliminary and is provided to assist licensees in 
reviewing the potential of having procured suspect electrical equipment at 
their facilities.  

Licensees are reminded of the requirements to ensure that procured items meet 
the relevant specifications and codes and are suitable for the intended appli-
cation.  Licensees should consider, as a matter of prudence, the need to 
inquire of and to verify with their authorized distributors the sources of 
procured materials, equipment, and components.  Licensees may meet these 
requirements by effectively implementing their quality assurance (QA) 
programs, particularly in the areas of vendor evaluations, vendor 
surveillances, receipt inspection, bench tests, and post-installation tests. 

.                                                                 IN 88-46
                                                                 July 8, 1988
                                                                 Page 3 of 3


NRC is gathering additional information to determine what further actions are 
necessary.  The primary purpose of this information notice is to alert 
addressees of the situation as soon as possible.  The NRC is considering 
issuing a bulletin to followup on this information notice when the NRC has 
sufficient information to define requirements.

No specific action or written response is required by this information notice.
If you have any questions about this matter, please contact one of the techni-
cal contacts listed below or the Regional Administrator of the appropriate 
regional office.




                                   Charles E. Rossi, Director
                                   Division of Operational Events Assessment
                                   Office of Nuclear Reactor Regulation


Technical Contacts:  K. R. Naidu, NRR 
                     (301) 492-0980 

                     Jaime Guillen, NRR
                     (301) 492-1170


Attachments:  
1.  Preliminary List of Customers (Intermediate Suppliers) 
      of Suspect Electrical Equipment
2.  Preliminary List of Original Equipment Manufacturers
      Whose Names May Have Been Used on Surplus or 
      Refurbished Equipment Sold as New Equipment
3.  List of Recently Issued NRC Information Notices
.                                                                 Attachment 1
                                                                 IN 88-46
                                                                 July 8, 1988
                                                                 Page 1 of 2


             PRELIMINARY LIST OF CUSTOMERS (INTERMEDIATE SUPPLIERS)
                         OF SUSPECT ELECTRICAL EQUIPMENT


Organization                  Location                           Nuclear Utility
                                                                  (if available)

Westinghouse Electric         St. Louis, MO; Boston, MA;
Supply Co. (WESCO)            Boise, ID; Atlanta, GA; 
                              Charleston, SC; Panama, FL;
                              Santa Clara, CA; Fresno, CA;
                              Sacramento, CA; Shreveport, LA;
                              Green Bay, WI; Elk Creek, IL;
                              Albuquerque, NM; Mobile, AL;
                              Ft. Worth, TX; Baton Rouge, LA;
                              Birmingham, AL; East Hartford, CT;
                              Kokomo, IN; Jackson, MS; 
                              Milwaukee, WI; Beaumont, TX;
                              Nashville, TN; Skelton, WV;
                              Albany, NY; Hartford, CT;
                              Portland, ME; St. Paul, MN;
                              Minneapolis, MN; other locations

Power Conversion              Huntington Beach, CA

Rockwell International        Los Angeles, CA

Arkansas Power and Light      Little Rock, AR                    ANO

Southern California           San Clemente, CA;                  SONGS
Edison                        other locations

Phoenix Electric              Phoenix, AZ

Rensenhouse Electric          Topeka, KS

Breaker and Control           Houston, TX

General Electric Company      Baltimore, MD; Houston, TX;
                              Landover, MD; Chantilly, VA;
                              Emeryville, CA; Elmhust, IL

Southern Electric             Alexandria, LA
Supply Company

Cleveland Electric Company

.                                                                 Attachment 1
                                                                 IN 88-46
                                                                 July 8, 1988
                                                                 Page 2 of 2


             PRELIMINARY LIST OF CUSTOMERS (INTERMEDIATE SUPPLIERS)
                         OF SUSPECT ELECTRICAL EQUIPMENT


Organization                  Location                           Nuclear Utility
                                                                  (if available)


Stokley Enterprises           Norfolk, VA

Taylor Electric Company       Portland, OR

Graybar                       Ventura, CA; Atlanta, GA

Hughes Aircraft               El Segundo, CA

Houston Electric              Houston, TX
Distribution Company

ITE Electrical Products       Atlanta, GA; Knoxville, TN

Knudson Corporation           Los Angeles, CA

Georgia Power Company         Milledgeville, GA
.                                                                 Attachment 2
                                                                 IN 88-46
                                                                 July 8, 1988
                                                                 Page 1 of 2


                     PRELIMINARY LIST OF ORIGINAL EQUIPMENT 
                  MANUFACTURERS WHOSE NAMES MAY HAVE BEEN USED
           ON SURPLUS OR REFURBISHED EQUIPMENT SOLD AS NEW EQUIPMENT 


Manufacturer                  Model Number             Equipment Description


Square D                      B19.5; B22               Heater for overload relay

General Electric              12HGA11S52               Auxiliary relay

Exide Company                 NX400

Spectro Inc.                  V00014                   Mercury lamps

Bussman Company               REN15                    15-amp 250-V fuse

Bussman Company               NOS-30                   30-amp 600-V fuse

(unknown)                     FSN 5925-628-0641        Circuit breaker

Westinghouse                  DB-50                    Trip unit

Westinghouse                  DB-25                    400-amp circuit breaker

Westinghouse                  HKB3150T                 Trip unit

Westinghouse                  KB3250F                  Frame

Westinghouse                  FB3020                   Circuit breaker

Westinghouse                  FB3070                   Circuit breaker

Westinghouse                  FB3050                   Circuit breaker

Westinghouse                  EHB3040                  Circuit breaker

Westinghouse                  EHB3025                  Circuit breaker

Westinghouse                  LBB3125                  Circuit breaker

Westinghouse                  HKA31250                 Trip unit

Westinghouse                  JA3200                   Circuit breaker

Westinghouse                  EHB2100                  Circuit breaker

Westinghouse                  CAH3200                  Circuit breaker

.                                                                 Attachment 2
                                                                 IN 88-46
                                                                 July 8, 1988
                                                                 Page 2 of 2


                     PRELIMINARY LIST OF ORIGINAL EQUIPMENT 
                  MANUFACTURERS WHOSE NAMES MAY HAVE BEEN USED
            ON SURPLUS OR REFURBISHED EQUIPMENT SOLD AS NEW EQUIPMENT


Manufacturer                  Model Number             Equipment Description


Westinghouse                  225N                     Navy trip units

ITE                           EF-3B100                 100-amp circuit breaker

General Electric              AK-2-75-3                Circuit breaker

General Electric              AK-2                     Circuit breaker

General Electric              AK-1-50                  Circuit breaker

General Electric              AK-1-75                  Circuit breaker

General Electric              B; TDQ; TFJ              Circuit breakers

General Electric              TCVVFS                   Circuit breaker

ITE                           ET; KA                   Circuit breakers

Cutler Hammer                 --                       Circuit breakers

Zinsco/Sylvania               --                       Circuit breakers

Bryant                        --                       Circuit breakers

Murry                         --                       Circuit breakers

Federal Pacific Electric      --                       Circuit breakers
Company
.                                                            Attachment 3
                                                            IN 88-46 
                                                            July 8, 1988 
                                                            Page 1 of 1

                             LIST OF RECENTLY ISSUED
                            NRC INFORMATION NOTICES 
_____________________________________________________________________________
Information                                  Date of 
Notice No._____Subject_______________________Issuance_______Issued to________

88-45          Problems In Protective        7/7/88         All holders of OLs
               Relay and Circuit                            or CPs for nuclear
               Breaker Coordination                         power reactors.

88-44          Mechanical Binding of         6/24/88        All holders of OLs
               Spring Release Device                        or CPs for nuclear
               in Westinghouse Type                         power reactors.
               DS-416 Circuit Breakers

88-43          Solenoid Valve Problems       6/23/88        All holders of OLs
                                                            or CPs for nuclear
                                                            power reactors.

88-42          Circuit Breaker Failures      6/23/88        All holders of OLs
               Due to Loose Charging                        or CPs for nuclear
               Spring Motor Mounting Bolts                  power reactors.

88-41          Physical Protection           6/22/88        All holders of OLs
               Weaknesses Identified                        or CPs for nuclear
               Through Regulatory Ef-                       power reactors.
               fectiveness Reviews (RERs)

88-40          Examiners' Handbook for       6/22/88        All holders of OLs
               Developing Operator                          or CPs for nuclear
               Licensing Examinations                       power reactors.

88-39          LaSalle Unit 2 Loss of        6/15/88        All holders of OLs
               Recirculation Pumps With                     or CPs for BWRs.
               Power Oscillation Event

88-38          Failure of Undervoltage       6/15/88        All holders of OLs
               Trip Attachment on General                   or CPs for nuclear
               Electric Circuit Breakers                    power reactors.

88-37          Flow Blockage of Cooling      6/14/88        All holders of OLs
               Water to Safety System                       or CPs for nuclear
               Components                                   power reactors.

88-36          Possible Sudden Loss of RCS   6/8/88         All holders of OLs
               Inventory During Low Coolant                 or CPs for PWRs.
               Level Operation                              
_____________________________________________________________________________
OL = Operating License
CP = Construction Permit 
Page Last Reviewed/Updated Tuesday, November 12, 2013