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:
omponents will continue to perform required safety functions while exposed to environmental conditions of normal operations, maintenance, testing, and postulated accidents, including LOCAs and dynamic effects of pipe whip, missiles, and discharging fluids. 3. GDC 5 requires that SSCs important to safety not be shared by nuclear power units unless such sharing can be shown not to significantly impair their ability to perform their intended safety functions, including, in an accident in one unit, an orderly shutdown and cool-down of the remaining units. GDC 5 applies to this SRP section because the reviewer evaluates the use of the reactor auxiliary CWS in multiple-unit plants for whether an accident in one unit significantly affects the capability to conduct a safe and orderly shutdown and cool-down in other units. GDC 5 requirements provide assurance that the reactor auxiliary CWS and its components will continue to perform their required safety functions even if shared by multiple nuclear power units. 4. GDC 44 requires a system to transfer heat from SSCs important to safety. The system must be able to function 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 for its capability to continue performing intended safety functions during normal operations, anticipated operational occurrences, and accident conditions, assuming a single, failure concurrent with the loss of offsite power. GDC 44 requirements provide assurance that the reactor auxiliary CWS and its components will continue to perform their required safety functions, assuming a single, failure concurrent with the loss of offsite power. 9.2.2-8 Revision 4 - March 2007 5. GDC 45 requires CWS design for appropriate periodic inspection of important components (e.g., heat exchangers and piping) to ensure system integrity and capability. GDC 45 applies to