Document: NUREG-0800
Document ID: 2200e046-1749-4aa1-a474-997b369b63b2
Document Type: srp
Title: REACTOR AUXILIARY COOLING WATER SYSTEMS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070513.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.2.2
CFR Part: 
CFR Title: 

Content:
uired safety functions even if they are shared by multiple nuclear power units.48 4. Compliance with GDC 44 requires that a system be provided to transfer heat from structures, systems, and components important to safety. The system must be capable of functioning under normal operating and accident conditions, assuming a single failure concurrent with the loss of offsite power. GDC 44 applies to this SRP section because the reviewer evaluates the reactor auxiliary CWS to ensure its capability to continue performing its intended safety functions during normal operations, anticipated operational occurrences, and accident conditions, assuming a single failure concurrent with the loss of offsite power. SRP Section 9.2.2 provides guidance acceptable to the staff for complying with these requirements. Meeting the requirements of GDC 44 provides assurance that the reactor auxiliary CWS and its associated components will continue performing their required safety functions, assuming a single failure concurrent with the loss of offsite power.49 5. Compliance with GDC 45 requires that the cooling water system be designed to permit appropriate periodic inspection of important components (e.g., heat exchangers and piping) to ensure the integrity and capability of the system. GDC 45 applies to this SRP section because the reviewer evaluates the reactor auxiliary CWS to verify that appropriate periodic inspection of important components (e.g., heat exchangers and piping) will ensure the integrity and capability of the system to perform its safety-related functions during normal operations, anticipated operational occurrences, and accident conditions. In addition, the CWS must be able to mitigate the consequences, or prevent the occurrence, of an accident. SRP Section 9.2.2 describes staff positions related to the design and inspection of the CWS, including guidance for inspecting the system and its components. Meeting the requirements of GDC 45 provides assurance that important