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:
ccurrences, and accident conditions. In addition, the CWS must be able to mitigate the consequences, or prevent the occurrence, of an accident caused by exposure to environmental conditions associated with normal operations, maintenance, testing, or postulated accidents, including LOCAs and dynamic effects resulting from pipe whip, missiles, and discharging fluids. SRP Section 9.2.2 provides guidance acceptable to the staff for complying with these requirements. Meeting the requirements for GDC 4 provides assurance that the reactor auxiliary CWS and its associated components will continue to perform required safety functions while being exposed to environmental conditions associated with normal operations, maintenance, testing, and postulated accidents, including LOCAs and dynamic effects resulting from pipe whip, missiles, and discharging fluids.47 3. Compliance with GDC 5 requires that structures, systems, and components important to safety shall not be shared by nuclear power units unless it can be shown that such sharing 9.2.2-9 DRAFT Rev. 4 - April 1996 will not significantly impair their ability to perform their intended safety functions, including, in the event of an accident in one unit, an orderly shutdown and cooldown of the remaining units. GDC 5 applies to this SRP section because the reviewer evaluates the use of the reactor auxiliary CWS in multiple-unit plants to ensure that an accident in one unit will not significantly affect the capability to conduct a safe and orderly shutdown and cooldown in other units. SRP Section 9.2.2 provides guidance acceptable to the staff for complying with these requirements. Meeting the requirements of GDC 5 provides assurance that the reactor auxiliary CWS and its associated components will continue performing their required safety functions even if they are shared by multiple nuclear power units.48 4. Compliance with GDC 44 requires that a system be provided to transfer heat from structures, systems, and components