Inaccessible or Underground Power Cable Failures That Disable Accident Mitigation Systems or Cause Plant Transients
The U.S. Nuclear Regulatory Commission (NRC) has issued Generic Letter (GL) 2007-01 to all holders of operating licenses for nuclear power reactors, except those who have permanently ceased operation and have certified that fuel has been removed from the reactor vessel. The NRC is issuing this GL to: (1) Inform licensees that the failure of certain power cables can affect the functionality of multiple accident mitigation systems or cause plant transients, (2) Inform licensees that in the absence of adequate monitoring of cable insulation, equipment could fail abruptly during service, causing plant transients or disabling accident mitigation systems, (3) Ask licensees to provide information on the monitoring of inaccessible or underground electrical cables, and Require that addressees submit a written response to the NRC in accordance with NRC regulations in Title 10 of the Code of Federal Regulations Section 50.54(f). This Federal Register notice is available through the NRC's Agencywide Documents Access and Management System (ADAMS) under Accession Number ML070470317.
Mr. Eric Epstein; Denial of Petition for Rulemaking
The NRC is denying a petition for rulemaking (PRM) submitted by Mr. Eric Epstein on October 19, 2005. The petition, docketed as PRM- 50-81, requests that NRC codify criteria in the Federal Emergency Management Agency (FEMA) \1\ 1986 Guidance Memorandum (GM) EV-2, ``Protective Actions for School Children,'' into NRC's emergency planning regulations. The petitioner believes that this action is necessary to provide preplanned emergency evacuation capabilities for children in Pennsylvania. The NRC is denying PRM-50-81 because it does not provide significant new information that was not previously considered in denying an earlier petition, PRM-50-79, submitted by Mr. Lawrence T. Christian, which requested that the Commission amend its emergency planning regulations to ensure that all day care centers and nursery schools in the vicinity of nuclear power facilities are properly protected in the event of a radiological emergency.