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:
he reactor coolant system, vibration levels of reactor coolant system components, and other Appendix A to DG-1259, Page A-26 important parameters are in agreement with design values, if not previously demonstrated. m. Obtain baseline data for the reactor coolant system loose parts monitoring system, if not previously obtained. n. Calibrate instrumentation and demonstrate the proper response of reactor coolant leak detection systems, if not previously demonstrated and check the operation of computer programs used to calculate reactor coolant system leakage rates. This should include proper operation of reactor coolant system leakage rate monitoring equipment used to detect leakage into the secondary system through the steam generators (PWR only). o. Conduct vibration monitoring of reactor internals during steady state and transient operation to establish that design limits are not exceeded. BWR plants may conduct extensive inspections and tests of the steam dryer for potential adverse flow effects from acoustic resonance and hydraulic loading during power ascension. Where evaluation of plant data indicates that structural limits might be reached during power ascension, procedural instructions will require reduction in power to an acceptable level with reevaluation of the steam dryer loads to demonstrate acceptable structural capability prior to continuing power ascension. See RG 1.20 for specific guidance. p. Verify the proper operation of failed fuel detection systems (25 percent, 100 percent). q. Verify by review and evaluation of printouts and video displays that the control room or process computer is receiving correct inputs from process variables, and validate that performance calculations performed by the computer are correct (25 percent, 50 percent, 75 percent, 100 percent). r. Calibrate, as necessary, and verify the performance of major or principal plant control systems including: 1. T-average controller; 2. automatic reactor control system; 3. boron