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:
ormal operation and postulated accidents, as established in Chapter 3 of the SAR and reviewed by the organizations with primary responsibility for the reviews of plant systems, materials, and chemical engineering. 3. GDC 5 is satisfied as it relates to the sharing of SSCs of the ac power system and the following guidelines: A. Regulatory Guide 1.32, as it relates to the sharing of SSCs of the Class 1E power system at multi-unit stations. B. Regulatory Guide 1.81, as it relates to the sharing of SSCs of the ac power system, positions C.2 and C.3. 4. GDC 17 is satisfied as it relates to the onsite ac power system's: (a) capacity and capability to permit functioning of SSCs important to safety; (b) independence, redundancy, and testability to perform its safety function assuming a single failure; and (c) provisions to minimize the probability of losing electric power from any of the remaining supplies as a result of, or coincident with, the loss of power generated by the nuclear power unit or the loss of power from the transmission network. Acceptance is based on meeting the following specific guidelines: A. Regulatory Guide 1.6, as it relates to the independence of the onsite ac power system, positions D.1, D.2, D.4, and D.5. B. Regulatory Guide 1.9 (see also IEEE Std 387). C. Regulatory Guide 1.32 (see also IEEE Std 308), as it relates to design criteria for onsite ac power systems. D. Regulatory Guide 1.53 (see also IEEE Stds 279 and 603), as it relates to the application of the single-failure criterion to safety systems. E. Regulatory Guide 1.75 (see also IEEE Std 384), as it relates to the onsite ac power system. F. Regulatory Guide 1.153 (see also IEEE Std 603), as it relates to criteria for electrical portions of safety-related systems. G. Regulatory Guide 1.155, as it relates to the use of onsite emergency ac power sources for station blackout. 8.3.1-10 Revision 3 - March 2007 H. Regulatory Guide 1.204 (see also IEEE Stds 665, 666, 1050, and C62.23), as it