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:
verifications that licensees must meet before fuel load. In many cases, the ITAAC testing requirements are the same or similar to the preoperational tests required to be completed as part of the ITP. Preoperational testing not associated with ITAAC may be acceptably performed in accordance with this regulatory guide and the guidance in the ASME OM Code, Division 1. In cases in which preoperational tests are performed that demonstrate the acceptance criteria of both the ITP and the ITAAC the test results should be recorded under both programs. Following plant construction, testing should be accomplished to demonstrate the proper performance of SSCs and design features in the assembled plant. To ensure valid test results the preoperational tests should not proceed until construction of the system has been essentially completed and the designated construction inspections and tests have been satisfactorily completed. Construction inspections and tests typically consist of activities such as initial instrument calibration, flushing, cleaning, wiring, continuity and separation checks, hydrostatic pressure tests, and functional tests of components. In some cases, licensees may also perform final calibration of digital interfaces after the construction phase and during the preoperational test phase. For additional details, see Section J, “Instrumentation and Control Systems” in this appendix. Preoperational tests should demonstrate that SSCs will operate in accordance with their design during the preoperational test phase. Testing should include, as appropriate and practical, manual and automatic operation, operation of systems and their components, automatic operation, operation in all alternate or secondary modes of control, and operation and verification tests to demonstrate expected operation following a loss of power sources and in degraded modes for which the systems are designed to remain operational. Tests also should include, as appropriate, verifications of