Document: NUREG-0800
Document ID: aa5392df-6e04-43cb-8a51-9dde890a6e6c
Document Type: srp
Title: ELECTRICAL SYSTEMS - INSPECTIONS, TESTS, ANALYSES, AND
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0706/ML070660625.pdf
Revision Date: 2023-06
Chapter: 14
Section ID: 14.3.6
CFR Part: 
CFR Title: 

Content:
electric power supplied by the offsite system be supplied by two physically independent circuits. This provides a reasonable assurance that the facility will function reliably in the event of a fault in an area of the electrical design. 2. Compliance with 10 CFR 50.49 requires that certain electrical equipment be qualified for accident (referred to as harsh) environments. This provides a reasonable assurance that the equipment needed in the event of an accident will perform its intended function. 3. Compliance with 10 CFR 50.63 requires that a nuclear power plant be able to withstand and recover from a station blackout event. This ensures that the plant can withstand and recover from this event safely. 4. IEEE Std. 308, "IEEE Standard Criteria for Class 1E power Systems for Nuclear Power Generating Stations," in conjunction with other related IEEE standards, establishes specific design criteria for nuclear power plant electrical systems and equipment. This provides a reasonable assurance that the electrical systems will perform their intended function in the anticipated operational environment. 14.3.6-9 March 2007 III. REVIEW PROCEDURES The reviewer will select material from the procedures described below, as may be appropriate for a particular case. These review procedures are based on the identified SRP acceptance criteria. For deviations from these acceptance criteria, the staff should review the applicant’s evaluation of how the proposed alternatives provide an acceptable method of complying with the relevant NRC requirements identified in Subsection II. 1. In establishing the top level requirements for the electrical design, the reviewer should use the Code of Federal Regulations (CFR) including the General Design Criteria (GDC) of Appendix A and Parts 50.49, "Environmental Qualification of Electric Equipment Important to Safety for Nuclear Power Plants," and 50.63, "Loss of All Alternating Current Power," as the main bases. In addition, the Institute of