Document: NUREG-0800
Document ID: 9cfc38bf-7808-446e-a43d-4ca9ff55df2a
Document Type: srp
Title: AC POWER SYSTEMS (ONSITE)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1007/ML100740289.pdf
Revision Date: 2023-06
Chapter: 8
Section ID: 8.3.1
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Organization responsible for electrical engineering review Secondary - None I. AREAS OF REVIEW The descriptive information, analyses, and referenced documents, including functional logic diagrams, electrical single-line diagrams, tables, physical arrangement drawings, and electrical control and schematics, for the onsite alternating current (ac) power system presented in the applicant's safety analysis report (SAR) are reviewed. The intent of the review is to determine that the onsite ac power system satisfies the requirements of General Design Criteria (GDCs) 2, 4, 5, 17, 18, and 50 and will perform its intended functions during all plant operating and accident conditions. The onsite ac power system includes those standby power sources, distribution systems, and auxiliary supporting systems provided to supply power to safety-related equipment or equipment important to safety for all normal operating and accident conditions. Diesel generator sets have been widely used as the standby power source for the onsite ac power system and will be 8.3.1-2 Revision 4 - May 2010 covered in this Standard Review Plan (SRP) section. Emphasis is placed on those portions of the systems that are safety-related. Those portions that are not related to safety are reviewed to determine potential interactions with safety-related portions. Other standby power sources such as nearby hydroelectric, nuclear, or fossil units, including gas turbine-generator sets, will not be addressed herein. These sources, when proposed, will be evaluated on a case-by-case basis. In addition, those interface areas between the onsite and offsite power systems at the station distribution system level are within the scope of review of this SRP section insofar as they relate to the independence of the onsite power system. This SRP revision incorporates considerations for the review of the electric power system design brought about by the new advanced light-water reactor (ALWR)