Document: NRC Regulatory Guide
Document ID: d940ffea-1d07-4cc8-b0f2-64d5495912d7
Document Type: regulatory_guide
Title: Criteria for Power Systems for Nuclear Power Plants + HISTORY - HISTORY DG-1420 , Proposed Revision 4, published 08/2024 DG-1079 , Proposed Revision 3, published 04/2003 (Rev. 4)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2415/ML24158A060.pdf
Revision Date: 2024-08
Chapter: 
Section ID: RG-1.32
CFR Part: 
CFR Title: 

Content:
or protection and safety systems and incorporates by reference IEEE Std. 279-1968, “Proposed IEEE Criteria for Nuclear Power Plant Protection Systems” (Ref. 4), IEEE Std. 279-1971, “Criteria for Protection Systems for Nuclear Power Generating Stations” (Ref. 5), and IEEE Std. 603-1991, “Criteria for Safety Systems for Nuclear Power Generating Stations” (including the correction sheet dated January 30, 1995) (Ref. 6). The applicability of each of these standards to a given nuclear power plant depends on the plant’s licensing date and other criteria. • 10 CFR Part 52 governs the issuance of early site permits, standard design certifications, combined licenses, standard design approvals, and manufacturing licenses. It specifies, among other things, that contents of certain applications must satisfy the requirements of 10 CFR Part 50, Appendix A, Appendix B and 10 CFR 50.55a. Related Guidance • NUREG-0800, “Standard Review Plan for the Review of Safety Analysis Reports for Nuclear Power Plants: LWR Edition” (Ref. 7), Chapter 8, “Electric Power,” provides guidance to the NRC staff for performing safety reviews under 10 CFR Part 50 and 10 CFR Part 52. Specifically, Section 8.2, “Offsite Power Systems”; Section 8.3.1, “AC Power Systems (Onsite)”; and Section 8.3.2, “DC Power Systems (Onsite),” provide guidance for reviewing site electrical systems and compliance with GDCs 5, 17, and 18. DG-1420, Page 3 • RG 1.6, “Independence Between Redundant Standby (Onsite) Power Sources and Between Their Distribution Systems (Safety Guide 6)” (Ref. 8), provides examples of acceptable independence between redundant standby power sources and redundant distribution systems, to comply with GDC 17. • RG 1.81, “Shared Emergency and Shutdown Electric Systems for Multi-Unit Nuclear Power Plants” (Ref. 9), addresses the application of GDC 5. This RG permits sharing of some AC systems under certain conditions and subject to limitations but does