Document: NUREG-0800
Document ID: 72cf12c3-a823-4385-bbf4-92e2b543a906
Document Type: srp
Title: AC POWER SYSTEMS (ONSITE)
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:
of its primary review responsibility for SRP Section 8.2. Also, where applicable, reviews the design of the alternate ac (AAC) power source for station blackout in accordance with relevant guidelines presented in SRP Section 8.2. 14 2. Reviews overall conformance with the requirements of the Station Blackout Rule, 10 CFR 50.63, as part of its primary review responsibility for SRP Section 8.4 (proposed). 15 In the review of other areas associated with the ac onsite power system, the PSBEELB, will 16 coordinate other branches' evaluations that interface with the overall review of the system, as follows: 1. The Auxiliary Systems Branch (ASB)Plant Systems Branch (SPLB) evaluates the 17 adequacy of those auxiliary supporting systems that are vital to the proper operation 18 and/or protection of the ac power system as part of its primary review responsibility for SRP Sections 9.4.1 through 9.4.5 . This includes such systems as the heating, and 19 ventilation, and air conditioning systems provided to maintain a controlled environment 20 for safety-related instrumentation and electric equipment. In particular, ASBSPLB21 determines that the piping, ducting, and dampering for these heating and ventilation systems are adequate. 2. In addition, theThe ASB SPLB examines the physical arrangement of components and 22 23 structures for Class 1E systems and their supporting auxiliary systems to determine that single events and accidents will not disable redundant features as part of its primary review responsibility for SRP Sections 3.4.1, 3.5.1.1, 3.5.2, and 3.6.1. 3. The ASBSPLB determines those system components requiring electric power as a 24 function of time for each mode of reactor operation and accident condition as part of its primary review responsibility for SRP Sections 6.5.1, 6.7, 9.1.3, 9.1.4, 9.2.1, 9.2.2, 9.2.4, 9.2.5, 9.2.6, 9.39.3.1, 9.3.3, 9.4.1 through 9.4.5, 9.5.1, 10.4.5, 10.4.7, and 10.4.9. 25 4. The SPLB determines the adequacy of the environmental