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:
REVIEW RESPONSIBILITIES Primary - Plant Systems Branch (PSB)(SPLB)1 Secondary - None I. AREAS OF REVIEW The PSBSPLB reviews reactor auxiliary cooling water systems (CWS) that are required for safe 2 shutdown during normal operations, operational transientsanticipated operational occurrences,3 and accident conditions and for mitigating the consequences of an accident or preventing the 4 occurrence of an accident. These include closed loop auxiliary cooling water systems for reactor system components, reactor shutdown equipment, ventilation equipment, and components of the emergency core cooling system (ECCS). The review of these systems includes components of the system, valves and piping, and points of connection or interfaces with other systems. Emphasis is placed on the CWS for safety-related components such as ECCS equipment, ventilation equipment, and reactor shutdown equipment. The PSBSPLB reviews reactor auxiliary cooling water systems to ensure conformance with the 5 requirements of General Design Criteria 2, 4, 5, 44, 45, and 46. 1. The PSBSPLB reviews the capability of the auxiliary cooling systems to provide 6 adequate cooling water to safety-related ECCS components and reactor auxiliary DRAFT Rev. 4 - April 1996 9.2.2-2 equipment for all planned operating conditions. The review includes the following points: a. The functional performance requirements of the system including the ability to withstand adverse operational (i.e.e.g., water hammer) and environmental 7 occurrences, operability requirements for normal operation, and requirements for operation during and subsequent to postulated accidents. b. Multiple performance functions (if required) assigned to the system and the necessity of each function for emergency core cooling and safe shutdown. c. The capability of the system surge tank to perform its intended function. d. The capability of the system to provide adequate cooling water during all operating conditions. e. Controls to ensure that the