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:
form intended safety functions. The function of the reactor auxiliary CWS is to provide adequate cooling water to reactor system components, reactor shutdown equipment, ventilation equipment, and ECCS components during normal operations, anticipated operational occurrences, and 9.2.2-7 Revision 4 - March 2007 accident conditions. GDC 2 applies to this SRP section to ensure that the CWS can withstand the effects of all appropriate combinations of seismic and dynamic effects from these natural phenomena without loss of capability to perform design safety functions. GDC 2 requirements provide assurance that the reactor auxiliary CWS and its equipment can operate during the most severe historical natural phenomena combined with appropriate normal operations and accident conditions without loss of capability to perform intended safety functions. 2. GDC 4 requires that SSCs important to safety be designed to accommodate the effects of, and to be compatible with, environmental conditions of normal operations, maintenance, testing, and postulated accidents, including loss-of-coolant accidents (LOCAs) and dynamic effects of pipe whip, missiles, and discharging fluids. GDC 4 applies to this SRP section because the reviewer evaluates the CWS and its equipment to verify their capability to continue functioning to ensure safe shutdown during normal operations, anticipated operational occurrences, and accident conditions. In addition, the CWS must be able to prevent or mitigate the consequences of an accident caused by exposure to environmental conditions of normal operations, maintenance, testing, or postulated accidents, including LOCAs and dynamic effects of pipe whip, missiles, and discharging fluids. GDC 4 requirements provide assurance that the reactor auxiliary CWS and its components will continue to perform required safety functions while exposed to environmental conditions of normal operations, maintenance, testing, and postulated accidents, including LOCAs and dynamic