Document: NUREG-0800
Document ID: d9e9d0a9-6390-4154-94dc-7d5e6d8145cd
Document Type: srp
Title: A-C POWER SYSTEMS (ONSITE)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350489.pdf
Revision Date: 2023-06
Chapter: 8
Section ID: 8.3.1
CFR Part: 
CFR Title: 

Content:
rnadoes, hurricanes, and floods by locating the a-c power system and components in seismic Category' I structures which provides protection from the effects of tornadoes, tornado missiles, and floods. In addition the a-c power system and components have a quality assurance designation of Class 1E. 2. The applicant has met the requirements of GOC 4, "Environmental and Missile Design Bases", with respect to structures,.systems, and components of the a-c 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 struc- tures, systems components of the onsite a-c power system. The onsite a-c 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. 4. The applicant has met the requirements of GDC 17, "Electric Power Systems", with respect to the onsite Class 1E a-c power 8.3.1-18 Rev. 2 - July 1981 system's (a) capacity and capability to permit functioning of structures, systems, and components important to safety, (b) the independence and .redundancy to perform their safety function assuming a single failure, and (c) provisions to minimize the probability of losing electric power from any of the remaining supplies as a result of, or coincident with, the loss of power generated by the nuclear power unit or the loss of power from the transmission network. Acceptability was based on the applicant meeting the positions of Regulatory Guides 1.6, 1.9, 1.32, 1.75, and 1108, and NUREG/CR 0660. 5. The 'applicant has met the requirements of GOC 18, "Inspection And Testing of