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:
ormal coolant makeup capability. A single, active failure is considered in evaluations of the consequences of this accident. Moderate leakage cracks are determined in accordance with the guidelines of Branch Technical Position 3-3, “Protection Against Postulated Piping Failures in Fluid Systems Outside Containment.” G. Demonstration by testing that RCPs withstand a complete loss of cooling water for 20 minutes and instrumentation in accordance with Institute of Electrical and Electronics Engineers Standard (IEEE Std) 603, as endorsed by RG 1.153 with control room alarms detecting loss of cooling water so a period of 20 minutes is available for the operator to have sufficient time to initiate manual protection of 9.2.2-5 Revision 4 - March 2007 the plant. Alternatively, if it is not demonstrated by the necessary pump testing that the RCPs will operate for 20 minutes without operator corrective action, then the following requirements apply: i. Instrumentation in accordance with IEEE Std 603, as endorsed by RG 1.153 consistent with the criteria for the protection system to initiate automatic protection of the plant upon loss of cooling water to a pump. For this case, the component cooling water supply to the seal and bearing of the pump may be designed to nonseismic Category I requirements and Quality Group D; or ii. The component cooling water supply to each pump is designed to withstand a single, active failure or a moderate-energy line crack as defined in Branch Technical Position ASB 3-1 and to seismic Category I, Quality Group C, and American Society of Mechanical Engineers (ASME) Section III Class 3 requirements. 6. GDC 45 as to design provisions for inservice inspection of safety-related components and equipment. 7. GDC 46 as to design provisions for operational functional testing of safety-related systems or components for: A. Structural integrity and system leak-tightness. B. Operability and adequate performance of active system components. C. Capability