Document: NUREG-0800
Document ID: 6fd4d885-bb73-4ac0-9513-7365558c831e
Document Type: srp
Title: REACTOR AUXILIARY COOLING WATER SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550053.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.2.2
CFR Part: 
CFR Title: 

Content:
nalysis may verify system performance characteristics. E. Design provisions permit appropriate inservice inspection and functional testing of system components important to safety. The SAR information delineates a testing and inspection program, and the system drawings show the necessary test recirculation loops around pumps or isolation valves necessary for this program. F. Essential portions of the system are protected from the effects of high-energy and moderate-energy line breaks. The system description and layout drawings are reviewed for whether no high- or moderate-energy piping systems are close to essential CWS portions, or for protection from the effects of failure. The means for such protection are in SAR Section 3.6, and the procedures for reviewing this information are in the corresponding SRP sections. G. Essential components and subsystems (i.e., those necessary for safe shutdown) can function as required in a loss of offsite power and instrument air systems. The system design is acceptable if essential CWS portions meet minimum system requirements as stated in the SAR, assuming a concurrent failure of a single, active component, including a single failure of any auxiliary electric power source. The SAR is reviewed for whether, for each CWS component or subsystem affected by the loss of offsite power or instrument air systems, system flow and heat transfer capability exceed minimum requirements. The results of failure-modes and -effects analyses are considered for whether the system meets these requirements. This consideration is an acceptable verification of system functional reliability. The effects of loss of cooling water to RCP seals as a result of loss of power is reviewed by the secondary review organization as clarified in subsection III.4.E of this SRP section. 4. The system design information and drawings are analyzed by the primary review organization for whether the following features are incorporated: A. A leakage detection system to