Document: NUREG-0800
Document ID: 72cf12c3-a823-4385-bbf4-92e2b543a906
Document Type: srp
Title: AC POWER SYSTEMS (ONSITE)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070498.pdf
Revision Date: 2023-06
Chapter: 8
Section ID: 8.3.1
CFR Part: 
CFR Title: 

Content:
eatures are reviewed to determine 8 that they are designed to the same criteria as those for the safety-related loads and power systems that they support. This will include an examination of the vital supportingauxiliary supporting system component redundancy; power feed 9 assignment to instrumentation, controls, and loads; initiating circuits; load characteristics; equipment identification scheme; and design criteria and bases for the installation of redundant cables. 7. System Testing and Surveillance Onsite testing capabilities are reviewed. The means proposed for automatically monitoring the status of system operability are reviewed. 8. Reliability Program for Emergency Onsite AC Power Sources A reliability program for emergency onsite ac power sources is recommended to address onsite emergency source reliability with respect to station blackout. The program designed to attain and maintain the long-term reliability of each source at or above specified reliability targets is reviewed to verify its adequacy.10 89. Other Review Areas11 The ac power system is reviewed to determine that: a. The system and its components have the appropriate seismic design classification. b. The system and its components are housed in a structure with seismic category I classification. DRAFT Rev. 3 - April 1996 8.3.1-4 c. The system and its components are designed to withstand environmental conditions associated with normal operation, natural phenomena, and postulated accidents. d. The system and its components have a "Class 1E" quality assurance classification. Review Interfaces12 EELB also performs the following reviews under the SRP sections indicated: 13 1. Reviews the adequacy of the offsite power system, including required preferred power circuits to the onsite power system, as part of its primary review responsibility for SRP Section 8.2. Also, where applicable, reviews the design of the alternate ac (AAC) power source for station blackout in accordance with relevant guidelines