Document: NUREG-0800
Document ID: bc7e4c14-0eaa-4591-a506-23d7893f8a00
Document Type: srp
Title: as establishing acceptable guidance for meeting the requirements of this criterion.
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:
d OL), preliminary (CP) and final (OL) physical arrangement drawings, and electrical schematics (OL) . 145 The basis for acceptance of the ac power system in our this review was 146 conformance of the design criteria and bases to the Commission's regulations as set forth in the General Design Criteria (GDC) of Appendix A to 10 CFR Part 50. The staff concludes that the plant design is acceptable and meets the requirements of General Design CriteriaGDC 2, 4, 5, 17, 18, and 50 and 10 CFR 50.63. This 147 conclusion is based on the following: 1. The applicant has met the requirements of GDC 2, "Design Basis for Protection Against Natural Phenomena," with respect to structures, systems, and components of the ac power systems being capable of withstanding the effects of natural phenomena such as earthquakes, tornadoes, hurricanes, and floods by locating the ac power system and components in seismic Category I structures which provide protection from the effects of tornadoes, tornado missiles, and floods. In addition, the ac power system and components have a quality assurance designation of Class 1E. 2. The applicant has met the requirements of GDC 4, "Environmental and MissileDynamic Effects Design Bases," with respect to structures, systems, and 148 components of the ac power system being capable of withstanding the effects of missiles and environmental conditions associated with normal operation and postulated accidents by adequate plant design and equipment qualification program. 3. The applicant has met the requirements of GDC 5, "Sharing of Structures, Systems, and Components," with respect to structures, systems, and components of the 149 onsite ac power system. The onsite ac power system and components associated with the multi-unit facility are housed in physically separate seismic Category I structures, are not shared between units, and the applicant has met the positions of Regulatory Guide 1.32, Position C.2.a, and Regulatory Guide 1.81, Positions C.2 and C.3.