Document: NUREG-0800
Document ID: a95e85e4-c1f7-482b-a07b-a68a0ed63d43
Document Type: srp
Title: 8.4
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550067.pdf
Revision Date: 2023-06
Chapter: 8
Section ID: 8.3.2
CFR Part: 
CFR Title: 

Content:
n the licensing process. 8.1-15 Revision 3 - March 2007 TABLE 8-2 NRC STAFF INTERPRETATION OF THE REQUIREMENTS OF GDC 17 This criterion provides a deterministic delineation of the minimum requirements for the offsite and onsite electric power systems (i.e., in terms of specific system and circuit configuration and functional requirements). The only requirement in GDC 17 for explicitly meeting the single failure criterion relates to the onsite power system. In applying GDC 17, the staff has found it useful to also interpret the deterministic requirements for the offsite power system in terms of required conformance to the single failure criterion. The text of GDC 17, presented in the left column of Table 8-2, is keyed to the staff interpretation of its deterministic requirements and the corresponding staff interpretations regarding conformance to the single failure criterion. GDC 17 Staff Interpretation Criterion 17—Electric power systems. An onsite electric power system and an offsite electric power system shall be provided to permit functioning of structures, systems, and components important to safety. The safety function for each system (assuming the other system is not functioning) shall be to provide sufficient capacity and capability to assure that (1) specified acceptable fuel design limits and design conditions of the reactor coolant pressure boundary are not exceeded as a result of anticipated operational occurrences and (2) the core is cooled and containment integrity and other vital functions are maintained in the event of postulated accidents. a. Both an offsite and onsite power system shall be provided, each independent of the other and capable of providing power for all safety functions. (The offsite and onsite power systems considered together must meet the single failure criterion on a system basis without losing the capability to provide power for all safety functions. In addition, in view of requirement (b) below, the two systems considered