Document: NUREG-0800
Document ID: c5cd8519-169f-4fec-9d25-9ddb3ba73f52
Document Type: srp
Title: RESIDUAL HEAT REMOVAL (RHR) SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550002.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.4.7
CFR Part: 
CFR Title: 

Content:
dequate protection against wind, tornadoes, floods, and missiles, as appropriate. 16. For PWRs, the reviewer confirms that the auxiliary feedwater supply satisfies the requirements of Branch Technical Position BTP 5-4. 17. The reviewer provides information to other reviewers in those areas where the organization responsible for the review of reactor thermal hydraulic systems has a review responsibility that is not explicitly covered in steps 1–15 above. These additional areas of review responsibility include: A. Identification of engineered safety features and safe-shutdown electrical loads, and verification that the minimum time intervals for the connection of the engineered safety features to the standby power systems are satisfactory B. Identification of vital auxiliary systems associated with the RHR system and determination of cooling load functional requirements and minimum time intervals C. Identification of essential components associated with the main steam supply and the auxiliary feedwater system that are required to operate during and following shutdown 18. The reviewer considers compliance with acceptance criteria requirements II.6 by verifying that a leakage control program includes those portions of the RHR systems located outside of containment that contain or may contain radioactive material following an accident. The leakage control program should include periodic leak testing and measures to minimize leakage from the RHR systems. 5.4.7-12 Revision 4 - March 2007 19. As necessary, the reviewer verifies that actions have been taken to ensure the continued availability and high reliability of the decay heat removal systems during shutdown operations. For PWRs, design features should be incorporated to prevent a loss of RHR functions under reduced inventory and mid-Loop operations. The reviewer should verify that the RHR-specific guidance and measures contained in Generic Letter 88-17 and summarized as follows are satisfied: A. The reviewer verifies