Document: NUREG-0800
Document ID: 2200e046-1749-4aa1-a474-997b369b63b2
Document Type: srp
Title: REACTOR AUXILIARY COOLING WATER SYSTEMS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070513.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.2.2
CFR Part: 
CFR Title: 

Content:
applications, the review procedures and acceptance criteria given in 52 subsection II will be used to verify that the initial design criteria and bases have been appropriately implemented in the final design as set forth in the final SAR. One of the main objectives in the review of a CWS is to determine its function with regard to safety. Some cooling systems are designed as safety-related systems in their entirety, others have only portions of the system that are safety-related, and others are classified as nonsafety-related because they do not perform any safety function. To determine the safety category of a reactor auxiliary CWS, the PSBSPLB will evaluate its necessity for achieving 53 54 safe reactor shutdown conditions or for accident prevention or accident mitigation functions. The safety functions to be performed by these systems in all designs are essentially the same, however, the method used varies from plant to plant depending upon the individual designer. Upon request from the primary reviewer, the coordinating review branches will provide input for the areas of review stated in subsection I of this SRP section. The primary reviewer obtains and uses such input as required to ensure that this review procedure is complete. In view of the various designs provided, the procedures set forth below are for a typical reactor auxiliary CWS designed entirely as a safety-related system. Any variance of the review 55 procedures to take account of a proposed unique design will be such as to ensure that the system meets the criteria of subsection II. The reviewer will select and emphasize material from this SRP section, as may be appropriate for a particular case. 1. The information provided in the SAR pertaining to the design bases and design criteria, and the system description section are reviewed to verify that the equipment used and the 9.2.2-11 DRAFT Rev. 4 - April 1996 minimum system heat transfer and flow requirements for normal plant operations are