Document: NUREG-0800
Document ID: 853719df-a6ea-408b-8d43-5956155abc38
Document Type: srp
Title: and 8.3.2.
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1007/ML100740246.pdf
Revision Date: 2023-06
Chapter: 8
Section ID: 8.3.1
CFR Part: 
CFR Title: 

Content:
reactor designs, such as the AP1000. IEEE Std 308, as modified/supplemented by the regulatory positions of RG 1.32, establishes acceptable guidance for meeting the requirements of GDC 17. Meeting the requirements of GDC 17 provides assurance that a reliable electric power supply can be provided for all facility operating modes, including AOOs and DBAs to permit safety functions and other vital functions to be performed, even in the event of a single failure. 5. Compliance with GDC 18 requires that electric power systems important to safety be designed to permit appropriate periodic inspection and testing of key areas and features to assess their continuity and the condition of their components. These systems shall be designed to test periodically: (1) the operability and functional performance of the components of the offsite power systems, such as onsite power sources, relays, switches, circuit breakers, and buses, and (2) the operability of the systems as a whole and, under conditions as close to design as practical, the full operational sequence that brings the systems into operation, including operation of applicable portions of the 8.2-13 Revision 5 - May 2010 protection system, and the transfer of power among the nuclear power unit, the offsite power system, and the onsite power system. This criterion requires that the ac power system provide the capability to perform integral testing on a periodic basis. Meeting the requirements of GDC 18 provides assurance that, when required, offsite power systems can be appropriately and unobtrusively accessed for required periodic inspection and testing, enabling verification of important system parameters, performance characteristics, and features and detection of degradation and/or impending failure under controlled conditions. 6. GDCs 33, 34, 35, 38, 41, and 44 set forth requirements for the safety systems for which the access to both offsite and onsite electric power sources must be provided. Compliance with these