Document: NUREG-0800
Document ID: b351c30f-74b4-4d36-833e-939d23abae4e
Document Type: srp
Title: D-C POWER-SYSTEMS (ONSITE)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350494.pdf
Revision Date: 2023-06
Chapter: 8
Section ID: 8.3.2
CFR Part: 
CFR Title: 

Content:
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 instrumenta- tion and other instrumentation systems including bypass indication required for safety as part of its primary review responsibility for SRP Sections 7.5 8.3.2-3 Rev. 2 - July 1981 and 7.6. The Effluent Treatment Systems Branch (ETSB) 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 responsi- bility for SRP Section 6.5.1. The Procedures.and Test Review Branch (PTRB) determines the acceptability of the preoperational and initial startup tests and programs as part of its primary review responsibility for SRP Section 14.0. The mechanical Engineering.Branch (MEB) reviews the criteria for seismic qualification and the test and analysis procedures and methods to ensure the mechanical survivability of Category I instrumentation and electrical equipment (including raceways, swltchgear control room boards, and Instrument racks and panels) in the event of.a seismic occurrence. Electrical operability is reviewed by EQ8 as described above. The Chemical Engineering Branch (CMEB) examines the fire protection and fire fighting systems for the d-c power system and its supporting auxiliary system components to assure that adverse effects of fire are minimized as part of its primary review responsibility for SRP Section 9.5.1. This includes the adequacy of protection provided redundant safe shutdown circuits to determine that a single design basis fire will not disable both redundant circuits. The reviews for technical specifications and