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UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF NUCLEAR REACTOR REGULATION WASHINGTON, D.C. 20555 December 30, 1988 Information Notice No. 88-46, SUPPLEMENT 2: LICENSEE REPORT OF DEFECTIVE REFURBISHED CIRCUIT BREAKERS Addressees: All holders of operating licenses or construction permits for nuclear power reactors. Purpose: This information notice supplement is being provided to present additional information regarding the supply of surplus or refurbished electrical equip- ment such as circuit breakers (CBs) to nuclear power plants as discussed in NRC Information Notice (IN) No. 88-46 including Supplement 1. It is expected that recipients will review this information for applicability to their faci- lities. However, suggestions contained in this information notice do not constitute NRC requirements; therefore, no specific action or written response is required. Description of Circumstances: Information Notice No. 88-46 discussed a report by Pacific Gas and Electric (PG&E) that defective refurbished CBs were supplied to PG&E's Diablo Canyon Nuclear Power Plant by a California electrical supplier. Supplement No. 1 to IN 88-46 provided a list of shipments of circuit breakers to nuclear power plants or nuclear utilities by five California companies that may have supplied defective refurbished electrical equipment. The NRC has conducted followup inspections and investigations at selected CB distributors and at companies suspected of selling used or refurbished circuit breakers. Additionally, nuclear utility sales information related to poten- tially refurbished CBs has been voluntarily provided to the NRC by distributors of electrical equipment. This information is summarized in Attachment 1. Sev-eral utilities identified in the Attachment have already been contacted by the NRC concerning specific licensee procurements and disposition of the equipment involved. The NRC staff does not have any specific information on the condition of the equipment provided by these companies; however, the activities observed at some of the companies visited by the NRC were not considered sufficient to assure breaker functionality and quality. 8812280051 . IN 88-46, Supplement 2 December 30, 1988 Page 2 of 2 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 technical 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: J. B. Jacobson, NRR (301) 492-0996 K. R. Naidu, NRR (301) 492-0980 Attachments: 1. Shipments of Circuit Breakers to Nuclear Power Plants or Nuclear Utilities 2. List of Recently Issued NRC Information Notices . Attachment 2 IN 88-46, Supplement 2 December 30, 1988 Page 1 of 1 LIST OF RECENTLY ISSUED NRC INFORMATION NOTICES _____________________________________________________________________________ Information Date of Notice No._____Subject_______________________Issuance_______Issued to________ 88-101 Shipment of Contaminated 12/28/88 All holders of OLs Equipment between Nuclear or CPs for nuclear Power Stations power reactors. 88-100 Memorandum of Understanding 12/23/88 All major nuclear between NRC and OSHA materials Relating to NRC-licensed licensees and Facilities (53 FR 43950, utilities holding October 31, 1988) CPs and OLs. 88-99 Detection and Monitoring 12/20/88 All holders of OLs of Sudden and/or Rapidly or CPs for PWRs. Increasing Primary-to- Secondary Leakage 88-98 Electrical Relay Degradation 12/19/88 All holders of OLs Caused by Oxidation of or CPs for nuclear Contact Surfaces power reactors. 88-97 Potentially Substandard 12/16/88 All holders of OLs Valve Replacement Parts or CPs for nuclear power reactors. 88-96 Electrical Shock Fatalities 12/14/88 All holders of OLs at Nuclear Power Plants or CPs for nuclear power reactors. 88-95 Inadequate Procurement 12/8/88 All holders of OLs Requirements Imposed by or CPs for nuclear Licensees on Vendors power reactors. 88-94 Potentially Undersized 12/2/88 All holders of OLs Valve Actuators or CPs for nuclear power reactors. 88-93 Teletherapy Events 12/2/88 All NRC medical licensees. 88-92 Potential for Spent Fuel 11/22/88 All holders of OLs Pool Draindown or CPs for nuclear power reactors. _____________________________________________________________________________ OL = Operating License CP = Construction Permit . .
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