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:
censee has designated to determine if any tests and acceptance criteria have not been met. Appropriate remedial actions, including retesting, should be taken if the acceptance criteria associated with preoperational tests are not satisfied. 5. Schedule Sufficient time should be scheduled to perform orderly and comprehensive testing. Previous applicants’ or licensees’ schedules for conducting the preoperational and initial startup phases have typically allowed a minimum of approximately 9 months for preoperational testing and 3 months for initial start-up testing. Significantly shorter time periods should be justified. 6. Participation of Plant Operating and Technical Staff The licensee’s plant operating and plant technical staff should participate, to the extent practical, in developing and conducting the ITP and evaluating the test results. 7. Trial Testing of Plant Emergency, Operating, and Surveillance Test Procedures Plant emergency, operating, and surveillance test procedures should, to the extent practical, be developed, trial tested, and corrected during the ITP, before fuel load, to establish their adequacy. Trial testing may include low power tests that simulate real and off-normal plant conditions after fuel load, when necessary. This can be accomplished by having plant operators trained in and using the incorporated plant emergency, operating, and surveillance test procedures to the maximum extent possible during the ITP. Additionally, trial testing of emergency, operating, and surveillance test procedures should be incorporated into a plant referenced simulator that meets the requirements of 10 CFR 55.46(c) and is used in the operator training program. In evaluating plant conditions after each stage of power ascension, the test team should review the results and confirm whether the testing can proceed to the next power level. As part of this review, the test team should consider plant conditions, such as transients, core anomalies, or plant