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:
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 component cooling water loop to the reactor coolant pump (RCP) seal does not automatically isolate and provisions for the control room operators to isolate the RCP seal coolant line by remote manual means (see subsection III.4.f). 8 e.f. The sizing of the system for core cooling and decay heat loads and the associated design margin. 2. Other system aspects that are reviewed include: a. The effects of nonseismic Category I component failures on the seismic Category I portion of the system. b. The provisions for detection, collection, and control of system leakage and the means provided to detect leakage of activity from one system to another and preclude its release to the environment. c. The requirements for operational testing and inservice inspection of the system. d. The capability of the system to provide adequate cooling to the seals and bearings of all reactor coolant pumps. e. Instrumentation and control features necessary to accomplish design functions, including isolation of components to deal with leakage or malfunctions and actuation requirements for redundant equipment. f. A simplified reliability analyses using event-tree and fault-tree logic techniques. 3. PSB also performs the following reviews under the SRP sections indicated: 9 a. Review of flood protection is performed under SRP Section 3.4.1, 9.2.2-3 DRAFT Rev. 4 - April 1996 b. Review of the protection against internally-generated missiles is performed under SRP Section 3.5.1.1, c. Review of the protection of structures, systems and components against the effects of externally-generated missiles is performed under SRP Sections 3 5.1.4 and 3.5.2, and d. Review of high and moderate energy pipe breaks is performed under SRP Section 3.6.1. In addition, the PSB will coordinate other branches evaluations