Document: NUREG-0800
Document ID: ec8e8c49-ea1e-4b46-a508-500ea11caad2
Document Type: srp
Title: ULTIMATE HEAT SINK
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350549.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.2.5
CFR Part: 
CFR Title: 

Content:
akes. Acceptance is based on meeting the guidance of Regulatory Guide 1.29, Position C-1. 2. The applicant has met the requirements of General Design Criterion 5 with respect to sharing of structures, systems, and components by demonstrating that such sharing does not affect the safe shutdown of either unit in the event of an active or passive failure. 3. The applicant has met the requirements of General Design Criterion 44 with respect to the ultimate heat sink. Acceptance is based on meeting the guidance of Regulatory Guides 1.27 and 1.72, as well as Branch Technical Position ASB 9-2. 4. The applicant has met the requirements of General Design Criterion 45 with respect to inservice inspection of the safety-related components and equipment by demonstrating the accessibility of the UHS system for periodic inspections. 5. The applicant has met the requirements of General Design Criterion 46 with respect to periodic pressure and functional testing to assure structural and leaktight integrity, operability, and performance of its active components, and operability of the system as a whole by demonstrating the capability to operate the system at full capacity during normal startup or shutdown procedures or during normal opera- tion without degrading the system to provide for a safe shutdown or to mitigate the consequences of an accident. 9.2.5-6 Rev. 2 - July 1981 V. IMPLEMENTATION The following is intended to provide guidance to the applicants and licensees regarding the NRC staff's plans for using this SRP section. Except in those cases in which the applicant proposes an acceptable alternative method for complying with specified portions of the Commission's regulations, the method described herein will be used by the staff in its evaluation of con- formance with Commission regulations. Implementation schedules for conformance to parts of the method discussed herein are contained in the referenced regulatory guides. VI. REFERENCES 1. 10 CFR Part 50, Appendix A, General