Document: NRC Regulatory Guide
Document ID: 74c49394-8dbf-46e7-b62a-b85de93b47d8
Document Type: regulatory_guide
Title: Initial Test Programs for Water-Cooled Nuclear Power Plants + HISTORY - HISTORY 11/2012 – DG-1259 , Proposed Revision 4 11/2006 – DG-1166 , Proposed Revision 3 (Rev. 4)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1229/ML12298A071.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.68
CFR Part: 
CFR Title: 

Content:
s during normal system startup and operation. A-1.e. Power Conversion System The power conversion system includes all components provided to channel reactor thermal energy during normal operation from the boundaries of the reactor coolant system to the main condenser, and those systems and components provided for return of condensate and feedwater4 from the main condenser to complete the cycle. Appropriate system expansion, restraint, and operability tests should be conducted, to the extent practical, for the following systems and components: 1. steam generators 2. main steam system 3. main steam isolation valves 4. steam generator pressure relief and safety valves 5. steam extraction system 6. turbine stop, control, bypass, and intercept valves 7. main condenser hotwell level control system 4 Regulatory Guide 1.68.1, “Initial Test Program of Condensate and Feedwater Systems for Light Water Reactors,” (Ref. 17) should be used as guidance for appropriate tests. Appendix A to DG-1259, Page A-6 8. condensate system 9. feedwater system 10. feedwater heater and drain systems 11. makeup water and chemical treatment systems 12. main condenser off gas system used to maintain condenser vacuum. A-1.f. Waste Heat Rejection Systems The waste heat rejection systems include systems and components provided to remove unused or wasted thermal energy from systems (such as the power conversion and residual heat removal system), and channel or direct this energy to the environment. Tests should be conducted, as appropriate, to verify redundancy and electrical independence (See Footnote 3). Appropriate system operability tests should also be conducted to demonstrate, to the extent practical, that the following waste heat rejection systems and components, including associated instrumentation and controls, will perform as designed: 1. circulating water system 2. ultimate heat sink cooling towers and associated auxiliaries 3. raw water and service water cooling ultimate heat sink