Document: NUREG-0800
Document ID: b1bccb14-17b6-422b-93ee-6d4f00b6512b
Document Type: srp
Title: CHILLED WATER SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1510/ML15103A559.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.2.7
CFR Part: 
CFR Title: 

Content:
bility to perform design safety functions. GDC 2 requirements provide assurance that the 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. 3. GDC 4 requires that SSCs important to safety shall be designed to accommodate the effects of and to be compatible with the environmental conditions associated with normal operation, maintenance, testing, and postulated accidents, including 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, AOOs, and accident conditions (e.g. containment isolation). 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 the dynamic effects of pipe whipping, missiles, and discharging fluids. GDC 4 requirements provide assurance that the 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 the dynamic effects of pipe whipping, missiles, and discharging fluids. 9.2.7-12 Revision 0 – September 2015 4. 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 the event of 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 in the safety evaluation report (SER) the use of the CWS in multiple unit plants for