Document: NUREG-0800
Document ID: 50ab8154-2a3c-4c0f-8ce4-06ac83096e5c
Document Type: srp
Title: ULTIMATE HEAT SINK
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550048.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.2.5
CFR Part: 
CFR Title: 

Content:
w of the protection against internally-generated missiles. 6. Section 3.5.2: review of SSCs to be protected against externally-generated missiles. 7. Section 3.6.1: review of high- and moderate-energy pipe breaks. 8. Section 6.1.1: review of the inservice inspection requirements for system components and the compatibility of materials of construction with service conditions. 9. Section 6.3: review of the heat loads transmitted to the UHS from the reactor coolant and emergency core cooling systems. 10. Section 7.1 and Appendix 7-A: review of the adequacy of the design, installation, inspection, and testing of all instrumentation and control systems required for proper operation. 11. Section 8.3.1: review of the adequacy of the design, installation, inspection, and testing of all electrical systems required for proper operation. 12. Section 9.2.1: review of the service water system and review of the program of surveillance and control techniques to detect and control flow blockage problems due to aquatic bivalves and other fouling due to mud, silt, or corrosion products. 13. Section 9.5.1: review of fire protection. 14. Section 16.0: review of technical specifications. 15. Chapter 17: review for quality assurance. The specific acceptance criteria and review procedures are contained in the referenced SRP sections. II. ACCEPTANCE CRITERIA Requirements Acceptance criteria are based on meeting the relevant requirements of the following Commission regulations: 1. GDC 2 as to capability of structures housing the system and the system itself to withstand the effects of natural phenomena like earthquakes, tornadoes, hurricanes, and floods. 2. GDC 5 as to capability of shared systems and components important to safety to perform required safety functions. 9.2.5-4 Revision 3 - March 2007 3. GDC 44 as to: A. The capability to transfer heat loads from safety-related SSCs to the heat sink under both normal operating and accident conditions. B. Suitable component redundancy so that