Document: NUREG-0800
Document ID: 4d216111-aa1a-4f5b-905a-42e4027513ca
Document Type: srp
Title: CIRCULATING WATER SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350087.pdf
Revision Date: 2023-06
Chapter: 10
Section ID: 10.4.5
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Auxiliary Systems Branch (ASB) Secondary - None I. AREAS OF REVIEW The circulating water system (CWS) provides a continuous supply of cooling water to the main condenser to remove the heat rejected by the turbine cycle and auxiliary systems. 1. The ASB reviews the performance of the CWS with respect to its functional requirements and the effects of adverse environmental occurrences, abnormal operational transients, or accident conditions such as loss of offsite power. 2. The ASB reviews the CWS and its interfaces with other systems to determine that a malfunction, failure of a component, or failure of a circulating water pipe including the failure of an expansion joint do not have unacceptable adverse effects on the functional performance capabilities of safety-related systems located in the immediate area. 3. ASB further reviews the design of the circulating water system with respect to the following: a. The capability to prevent or detect and control flooding of safety- related areas so that the intended safety function of a safety system or component will not be precluded due to circulating water system leakage. b. Provisions to annunciate abnormal and unsafe operating conditions. 4. ASB also performs the review of high- and moderate-energy pipe breaks under SRP Section 3.6.1. Rev. 2 - July 1981 USNRC STANDARD REVIEW PLAN Standard review plans are prepared for the guidance of the Office of Nuclear Reactor Regulation staff responsible for the review of applications to construct and operate nuclear power plants. These documents are made available to the public as part of the Commission's policy to Inform the nuclear Industry and the general public of regulatory procedures and policies. Standard review plans are not substitutes for regulatory guides or the Commission's regulations and compliance with them is not required. The standard review plan sections are keyed to the Standard Format and Content of Safety Analysis Reports for