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:
monstration of this capability. Appendix A to DG-1259, Page A-29 with the plant’s electrical distribution system aligned for normal full-power operation (100 percent). oo. Verify by observations and measurements, as appropriate, that piping and component movements, vibrations, and expansions are acceptable for (1) ASME Code Class 1, 2, and 3 systems, (2) other high energy piping systems inside Seismic Category I structures, (3) high energy portions of systems of which failure could reduce the functioning of any Seismic Category I plant feature to an unacceptable level, and (4) Seismic Category I portions of moderate energy piping systems located outside containment. In addition to these activities, licensees will conduct detailed monitoring for flow-induced vibration of piping and components (including the steam dryer in BWR plants) in the reactor coolant, main steam, and main feedwater systems for potential adverse flow effects caused by acoustic resonance and hydraulic loading. Refer to RG 1.20 for additional details. pp. Test the heat removal capacity of ultimate heat sink cooling chains including heat exchangers, cooling towers or other cooling sources (e.g., lake, river, ocean). qq. Verify through data collection that the design capacity of the ultimate heat sink will meet design acceptance criteria under normal plant conditions and design basis accident conditions. rr. Verify safety-related bus voltages obtained from the voltage analyses (by using analytical techniques and assumptions) by comparing with that of actual measured safety-related bus voltages. ss. Demonstrate the main generator is designed to accept a load rejection without a turbine trip and continue to supply plant loads without interruption (island mode plant operation). A-6. First-of-a-Kind (FOAK) Testing First-of-a-kind (FOAK) tests are defined as new, unique, or special tests for new design features in plants licensed under 10 CFR Part 50 or 10 CFR Part 52. If certain SSCs are new, unique,