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:
rt of its primary review responsibility for SRP Section 6.2.2. The CSB determines those system components requiring electric power as a function of time for each mode of reactor operation and accident condition as part of its primary review responsibility for SRP Sections 6.2.2, 6.2.4, and 6.2.5. The Equipment Qualification Branch (EQB) determines the environmental qualification of safety-related electrical equipment as part of their primary review responsibility for SRP Section 3.11. In particular, the EQB determines the capability of.safety-related electrical equipment to perform their designed safety function when subject to and following (1) the effects of accident environments such as loss of coolant and steam line break accidents, (2) the effects of normal environments that exceed the equipments design parameters such as temperature and humidity, (3) the effects of environments caused by loss of non-Class 1E heating and ventilation systems, (4) the effects of seismic shaking, and (5) the effects of normal design environments on redundant safety-related electrical equipment that do not have diversity of design such as redundant components manufactured and designed by the same-supplier. The Reactor Systems Branch (RSB) determines those system components requiring electric power as a function of time for each mode of reactor operation and accident condition as part of its primary review responsibility for SRP Sections 5.4.6, 5.4.7, and 6.3 The .Instrumentation and Control Systems Branch (ICSB) determines those system components requiring electric power as a function of time for each mode of reactor operation and accident condition as part of its primary review responsibility for SRP Sections 7.2 through 7.7. In addition, ICSB verifies the adequacy of safety-related display instrumentation and other instrumentation systems required for safety as part of its primary review responsibility for SRP Sections-7.5 and 7.6. The Effluent Treatment Systems Branch (ETSB)