Draft Regulatory Guides: Criteria for Power Systems for Nuclear Power Plants and Criteria for the Protection of Class 1E Power Systems and Equipment for Nuclear Power Plants

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The U.S. Nuclear Regulatory Commission (NRC) is issuing for public comment two related draft Regulatory Guides (DGs) namely DG- 1420, "Criteria for Power Systems for Nuclear Power Plants," and DG- 1354, "Criteria for the Protection of Class 1E Power Systems and Equipment for Nuclear Power Plants." DG-1420 is proposed Revision 4 to Regulatory Guide (RG) 1.32 of the same name and DG-1354 is newly proposed Revision 0 of RG 1.238. DG-1420 describes an approach that is acceptable to the NRC staff to meet regulatory requirements for the design, operation, and testing of electric power systems in nuclear power plants. DG-1354 describes an approach that is acceptable to the NRC staff for use in complying with NRC regulations that address the protection of Class 1E power systems and equipment at nuclear power plants.