Document: NUREG-0800
Document ID: 243e1ce7-857c-48e4-9eb7-6125311da9be
Document Type: srp
Title: RESIDUAL HEAT REMOVAL (RHR) SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070437.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.4.7
CFR Part: 
CFR Title: 

Content:
uction in the capability 68 of the residual heat removal system. Acceptability is based on meeting position C-2 of Regulatory Guide 1.29 or its equivalent. B. General Design Criterion 4, as related to dynamic effects associated with flow instabilities and loads (e.g., water hammer). C. General Design Criterion 5 which requires that any sharing among nuclear power units of structures, systems and components SSCs important to safety will not significantly 69 impair their safety function. D. General Design Criterion 19 with respect to control room requirements for normal operations and shutdown, and;.70 E. General Design Criterion 34 which specifies requirements for a residual heat removal system. F. TMI Action Plan item III.D.1.1 of NUREG-0737, equivalent to 10 CFR 50.34(f)(2)(xxvi) for applicants subject to 10 CFR 50.34(f), with respect to the provisions for a leakage detection and control program to minimize the leakage from those portions of the RHR system outside of the containment that contain or may contain radioactive material following an accident.71 Specific criteria necessary to meet the requirements of General Design Criteria 2, 4, 5, 19, and 34 are as follows: 1. The system or systems are to satisfy the functional, isolation, pressure relief, pump protection and test requirements specified in Branch Technical Position RSB 5-1. 2. In order to meet the requirements of General Design Criterion 4 (Ref 11) , design 72 features and operating procedures shall be provided to prevent damaging water hammer due to such mechanisms as voided pump discharge lines, water entrainment in steam lines and steam bubble collapse. 3. Interfaces between the RHR system and RCIC and component or service water systems should be designed so that operation of one does not interfere with, and provides proper support (where required) for, the other. In relation to these and other shared systems (e.g., emergency core cooling and containment heat removal systems), the RHR system must