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:
Cs or RTNSS B SSCs X X X Section III, Item 10A: is not applicable to nonsafety-related SSCs 9.2.7-24 Revision 0 – September 2015 Review Procedure: RTNSS B RTNSS C All Other Nonsafety-Related Section III, Item 10B: is not applicable to nonsafety-related SSCs Section III, Item 10C: Capability of isolated water-filled sections of piping in containment to withstand thermally-induced overpressurization is reviewed. X X X Section III.11 applies. X X Section III.12 applies. X X IV. EVALUATION FINDINGS The reviewer verifies that the applicant has provided sufficient information and that the review and calculations (if applicable) support conclusions of the following type to be included in the staff’s SER. The reviewer also states the bases for those conclusions. The CWS includes pumps, heat exchangers, chillers, valves and piping, expansion tanks, makeup piping, and the points of connection or interfaces with other systems. Portions of the CWS necessary for safe shutdown and accident prevention or mitigation are designed to seismic Category I and Quality Group C requirements. After review of the applicant’s proposed design criteria, design bases, and safety classification for the CWS as to the requirements for adequate cooling water for the safety-related ECCS components, HVAC, and reactor auxiliary equipment for all conditions of plant operation, the staff concludes that the design of the CWS is acceptable and meets the requirements of GDCs 1, 2, 4, 5, 44, 45 and 46. These conclusions are based on the following findings. 1. The applicant meets GDC 1 requirements for the CWS. Acceptance is based on the SSCs important to safety as being designed, fabricated, erected, and tested to quality standards commensurate with the importance of the safety functions to be performed. Recognized codes and standards shall be identified and evaluated to determine their applicability, adequacy, and sufficiency and shall be supplemented or modified as necessary to assure a quality