Document: NUREG-0800
Document ID: 81256f55-72dd-4777-9472-f373c71c4554
Document Type: srp
Title: AC POWER SYSTEMS (ONSITE)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550065.pdf
Revision Date: 2023-06
Chapter: 8
Section ID: 8.3.1
CFR Part: 
CFR Title: 

Content:
y 1, 1971, protection systems must be consistent with their licensing basis or may meet the requirements of IEEE Std 279-1971. Nuclear power plants with applications filed on or after May 13, 1999 for preliminary and final design approvals (10 CFR Part 52, Appendix O), design certification, construction permits, operating licenses, and combined licenses that do not reference a final design approval or design certification, must meet the requirements for safety systems in IEEE Std 603-1991 and the correction sheet dated January 30, 1995. Branch technical positions and industry standards that are acceptable to the staff for implementing the requirements of GDCs 2, 4, 5, 17, 18, and 50 are identified in SRP Section 8.1, and Table 8.1. In addition, 10 CFR 50.34(f)(2)(v), (xiii), and (xx), related to Task Action Plan items I.D.3, II.E.3.1 and II.G.1 of NUREG-0718 and NUREG-0737, provide additional guidance for the reviewer. Technical Rationale The technical rationale for application of these acceptance criteria to the areas of review addressed by this SRP section is discussed in the following paragraphs: 1. Compliance with GDC 2 requires that nuclear power plant SSCs important to safety be designed to withstand the effects of natural phenomena such as earthquake, tornado, hurricane, flood, tsunami, or seiche without loss of capability to perform their intended safety function. With regard to the ac power system, this criterion requires that the onsite ac power system be designed to withstand the effects of natural phenomena without loss of capability to perform its safety functions with appropriate consideration of the most severe natural phenomena that have been historically reported for the site and surrounding area. Therefore, the ac power system and its components should normally be located in seismic Category I structures that provide protection from the effects of tornadoes, tornado missiles, and floods. Equipment and components comprising the onsite ac power