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:
fication that all instrument loops are operable and respond within required response times, and adjustment and settings of temperature controllers and limit switches. 2. Confirm that test equipment is operable and properly calibrated. 3. Conduct tests and surveillances of individual components or subsystems to demonstrate that they meet their functional requirements. The following items should typically be considered for common types of equipment: a. Valves1 • leakage • opening and closing times • valve stroke • valve flow direction • valve seat orientation • position indication that confirms valve obturator position is accurately specified by control room lights • torque- and travel limiting settings • operability against pressure • diagnostic testing of power-operated valves with measurements of valve operating requirements and actuator output under static conditions and 1 American Society of Mechanical Engineers (ASME) Operation and Maintenance of Nuclear Power Plants provides requirements for in-service testing of pumps, valves and dynamic restraints in nuclear power plants. The applicant should examine these requirements for applicability to its preoperational test programs. Appendix C to DG-1259, Page C-2 against system differential pressure and flow to demonstrate design-basis capability • pyrotechnic-actuated valve actuation control circuitry operational readiness, and sample testing of pyrotechnic charges to demonstrate design-basis capability • check valve performance capability in both the forward and reverse flow directions • safety and relief valve performance in accordance with design requirements • examination of external condition and internal parts for structural integrity and presence of foreign material and fluids, and to confirm operational readiness (for example, surveillance requirements for pyrotechnic-actuated valves and nozzle check valves) b. Pumps1 • direction of rotation • vibration • motor load versus time