Document: NUREG-0800
Document ID: 6fd4d885-bb73-4ac0-9513-7365558c831e
Document Type: srp
Title: REACTOR AUXILIARY COOLING WATER SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550053.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.2.2
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Organization responsible for the review of cooling water systems Secondary - Organization responsible for the review of component performance and testing I. AREAS OF REVIEW The reactor auxiliary cooling water system (CWS) provides a closed loop of cooling water for reactor system components, reactor shutdown equipment, ventilation equipment, and components of the emergency core cooling system (ECCS). The review of reactor auxiliary CWS encompasses components required for safe shutdown during normal operations, anticipated operational occurrences, and accident conditions and for prevention or mitigation of the consequences of accidents. The review of these systems includes system components, valves and piping, and points of connection or interfaces with other systems. The CWS is emphasized for such safety-related components as ECCS, ventilation, and reactor shutdown equipment. The specific areas of review are as follows: 1. Compliance with the requirements of General Design Criteria (GDCs) 2, 4, 5, 44, 45, and 46. 2. The capability of the auxiliary cooling systems to provide adequate cooling water to safety-related ECCS components and reactor auxiliary equipment for all planned operating conditions. 9.2.2-2 Revision 4 - March 2007 3. The functional performance requirements of the system, including the ability to withstand adverse operational (e.g., water hammer) and environmental occurrences, operability requirements for normal operation, and requirements for operation during and following postulated accidents. 4. Multiple performance functions (if required) assigned to the system and the necessity of each function for emergency core cooling and safe shutdown. 5. The capability of the system surge tank to perform its intended function. 6. The capability of the system to provide adequate cooling water during all operating conditions. 7. Controls to ensure that the component cooling water loop to the reactor coolant pump (RCP) seal