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:
should be performed, and the effects of limiting malfunctions or failures should be simulated to demonstrate the adequacy of design and installation and the validity of accident analysis assumptions. Tests should be conducted, as appropriate, to verify redundancy and electrical independence (see footnote 3). The following list illustrates instrumentation and control systems that should be included in the test program (some of these tests can be conducted in conjunction with the appropriate system level tests): 1. pressurizer pressure and level control systems including transient response for pressurizer in-surge and out-surge; 2. main, auxiliary, and emergency feedwater control systems; 3. secondary system steam pressure control system; 4. recirculation flow control system; Appendix A to DG-1259, Page A-13 5. reactor coolant system leak detection systems; 6. loose parts monitoring system; 7. leak detection systems used to detect failures in the ECCS and containment; recirculating spray systems located outside containment; 8. automatic reactor power control system, integrated control system, and T-average control system; 9. pressure control systems used to maintain design differential pressures to prevent leakage across boundaries provided to contain fission products (for example, those used to pressurize spaces between containment isolation valves); 10. seismic instrumentation; 11. traversing in-core probe system; 12. failed fuel detection system; 13. in-core and ex-core neutron instrumentation; 14. instrumentation and controls that effect transfers of water supplies to auxiliary feedwater pumps, ECCS pumps, and containment spray pumps; 15. automatic dispatcher control systems; 16. hotwell level control system; 17. feedwater heater temperature, level, and bypass control systems; 18. auxiliary startup instrument tests (neutron response checks); 19. instrumentation and controls used for shutdown from outside the control room; 20. instrumentation used to detect