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:
provide assurance that components of the CWS can be tested, ensuring that it will be capable of performing intended safety functions. 8. 10 CFR 20.1406(a), which requires that a DC or COL applicant to describe how facility design and procedures for operation will minimize, to the extent practicable, contamination of the facility and the environment, facilitate eventual decommissioning, and minimize, to the extent practicable, the generation of radioactive waste. 10 CFR 20.1406(a) applies to this SRP section because the CWS couples to the primary coolant system across heat exchangers, and the possibility of leakage of contaminated primary coolant via the heat exchangers into the CWS exists. III. REVIEW PROCEDURES The reviewer will select material from the procedures described below, as may be appropriate for a particular case. These review procedures are based on the identified SRP acceptance criteria. For deviations from these acceptance criteria, the staff should review the applicant’s evaluation of how the proposed alternatives provide an acceptable method of complying with the relevant NRC requirements identified in Subsection II. One of the main objectives in CWS review is to determine its safety function. Some cooling systems are designed as entirely safety-related, other systems have only portions safety-related, and others are classified as nonsafety-related because they perform no safety function. To determine the safety category of a CWS, the review evaluates its necessity for achieving safe reactor shutdown conditions or for preventing or mitigating accidents. The safety functions of these systems in all designs are essentially the same; however, the method varies from plant to plant depending upon the designer. 9.2.7-14 Revision 0 – September 2015 Upon request from the primary reviewer, the coordinating reviewers provide input for the areas of review in Subsection I of this SRP section. The primary reviewer uses such input as required to complete this