Document: NUREG-0800
Document ID: 5cdeed4a-6cd5-4840-90c0-5159fbf2c9f0
Document Type: srp
Title: CHILLED WATER
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1409/ML14093A350.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.2.7
CFR Part: 
CFR Title: 

Content:
d that VWS pumps are adequately designed related to net positive suction head required (NPSHr) and are evaluated against NPSH available (NPSHa) under normal and accident conditions. Potential VWS pump vortexing conditions are also evaluated. Note: RTNSS B SSCs may provide core cooling and heat transfer functions in the post-72 hour period. RTNSS C may provide for defense-in-depth cooling and heat transfer functions in order to meet NRC safety goal guidelines. 6. The applicant meets GDC 45 requirements for inspection of VWSs by VWS design features for in-service inspection of safety-related components and equipment. 7. The applicant meets GDC 46 requirements for testing of VWSs by VWS design features for operational functional testing of the system and its components. 8. The applicant meets 10 CFR 20.1406 requirements for minimization of contamination of the facility and the environment, and for avoiding design features that would interfere with eventual decommissioning. RTNSS B and C and nonsafety-related nonrisk-significant: applies. For DC and COL reviews, the findings will also summarize the staff’s evaluation of requirements and restrictions (e.g., interface requirements and site parameters) and COL action items relevant to this SRP section. RTNSS B: applies for nonsafety-related functions in the post-72 hour period. RTNSS C: applies for nonsafety-related defense-in-depth functions in order to meet NRC safety goal guidelines. 9.2.7-30 Draft Revision 0 – July 2014 In addition, to the extent that the review is not discussed in other SER sections, the findings will summarize the staff’s evaluation of the ITAAC, including design acceptance criteria, as applicable. RTNSS B: applies for nonsafety-related functions in the post-72 hour period. RTNSS C: applies for nonsafety-related defense-in-depth functions in order to meet NRC safety goal guidelines. V. IMPLEMENTATION The staff will use this SRP section in performing safety evaluations of DC applications and