Document: NRC Regulatory Guide
Document ID: b3f1c9ad-b3bf-44dd-b353-6c5da96d4b26
Document Type: regulatory_guide
Title: Criteria for The Protection of Safety-Related
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2415/ML24158A041.pdf
Revision Date: 2024-08
Chapter: 
Section ID: RG-1.238
CFR Part: 
CFR Title: 

Content:
ct of 1995 (44 U.S.C. 3501 et. seq.). These information collections were approved by the Office of Management and Budget (OMB), under control numbers 3150-0011, 3150-0264, and 3150-0151, respectively. Send comments regarding this information collection to the FOIA, Library, and Information Collections Branch (T6-A10M), U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001, or by e-mail to Infocollects.Resource@nrc.gov, and to the Desk Officer, Office of Information and Regulatory Affairs, NEOB-10202, (3150-0011, 3150-0264, and 3150-0151) Office of Management and Budget, Washington, DC 20503. DG-1354, Page 5 Public Protection Notification The NRC may not conduct or sponsor, and a person is not required to respond to, a collection of information unless the document requesting or requiring the collection displays a currently valid OMB control number. DG-1354, Page 6 B. DISCUSSION Reason for Issuance The NRC is issuing a new guide on the protection of Class 1E power systems and equipment at nuclear power plants which incorporates the NRC’s implementation of risk-informed, performance-based approach to licensing. This RG endorses, with exceptions, additions and clarifications, IEEE Std. 741- 2022, which provides design criteria, design features, and testing provisions for the protection of safety- related or Class 1E power systems and equipment supplied from those systems at nuclear power plants. This new guide also takes into consideration operating experience and lessons learned. Background This RG describes a method acceptable to the NRC staff for complying with the regulations for the design, operation, and testing of electric power systems. IEEE Std. 741-2022 was prepared by IEEE Nuclear Power Engineering Committee Working Group 4.7 and was approved by the IEEE Standards Board on March 24, 2022. IEEE Std. 741-2022 provides (1) criteria that establish protection requirements for Class 1E power systems and equipment, (2) the purpose of and the means for