Document: NUREG-0800
Document ID: a1429b37-f5c5-4e2e-8d40-b26676261788
Document Type: srp
Title: Revision 3 - March 2007
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0707/ML070710446.pdf
Revision Date: 2023-06
Chapter: 8
Section ID: 8
CFR Part: 
CFR Title: 

Content:
ower system. BTP 8-3-2 Revision 3 - March 2007 B. BRANCH TECHNICAL POSITION 1. The staff has concluded, from a review of appropriate reliability data, that power systems with supporting grid interties meet the grid availability criterion with some margin. This conclusion is applicable to the review of most plants located on the U.S. mainland. 2. A strong indication exists that an isolated system large enough to justify inclusion of a nuclear unit will also meet this criterion. However, as a conservative approach, the staff will examine the generating capacity of a system, including interties if available, available to withstand outage of the largest unit. If the available capacity is judged marginal in its ability to provide adequate stability of the grid, additional measures should be taken. These may include provisions for additional capability and margin for the onsite power system beyond the normal requirements or other measures that may be appropriate in a particular case. The additional measures to be taken should be determined on an individual case basis. C. REFERENCES 1. Regulatory Guide 1.206, “Combined License Applications for Nuclear Power Plants (LWR Edition),” 2007. 2. IEEE Std. 242-2001, “Recommended Practice for Protection and Coordination of Industrial and Commercial Power Systems,” 2001. 3. IEEE Std. 399-1997, “Recommended Practice for Power Systems Analysis,” 1997. PAPERWORK REDUCTION ACT STATEMENT The information collections contained in the Standard Review Plan are covered by the requirements of 10 CFR Part 50 and 10 CFR Part 52, and were approved by the Office of Management and Budget, approval number 3150-0011 and 3150-0151. PUBLIC PROTECTION NOTIFICATION The NRC may not conduct or sponsor, and a person is not required to respond to, a request for information or an information collection requirement unless the requesting document displays a currently valid OMB control number.