Document: NUREG-0800
Document ID: bb233b69-c637-41e8-9774-95be0cc8b117
Document Type: srp
Title: STATION SERVICE WATER SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550056.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.2.1
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Organization responsible for the review of cooling water systems Secondary - None I. AREAS OF REVIEW The service water system (SWS) provides essential cooling to safety-related equipment and may also cool nonsafety-related auxiliary components used for normal plant operation. The system is reviewed from the service water pump intake to the points of cooling water discharge for compliance with the requirements of General Design Criteria (GDCs) 2, 4, 5, 44, 45, and 46. The ultimate heat sink (reviewed under Standard Review Plan (SRP) Section 9.2.5) is the intake source of water to the SWS for long-term cooling of station features required for plant shutdown and also of any special equipment required to prevent or mitigate the consequences of postulated accidents and as such is an SWS interface system. The SWS pump performance characteristics are compared to the high and low water levels of the ultimate heat sink to assure pumping capability for extended periods of operation following postulated events. Site-specific SWS portions may not be within the scope of the design submitted by applicants for design certification (DC) under 10 CFR Part 52. The SWS piping, valves, instrumentation, and controls within the DC applicant’s scope are reviewed as part of the DC submission. Site-specific portions of the design (may include the SWS pumps) are the responsibility of the Combined license (COL) applicant. The DC applicant’s submission should provide a conceptual design and interface requirements for that SWS portion outside the scope of the DC as required by 10 CFR Part 52. The specific areas of review are as follows: 9.2.1-2 Revision 5 - March 2007 1. The characteristics of the SWS components (pumps, heat exchangers, pipes, valves) are reviewed as to their functional performance as affected by adverse operational (i.e., water hammer) and environmental occurrences including cold weather protection, by abnormal operational requirements,