Measurement and Evaluation of Nuclear-Class Pipe Vibration in Nuclear Power Plant Commissioning

According to the requirement of American Society of Mechanical Engineers（ASME） criterion,the vibration of nuclear-class pipes in nuclear power plants shall be measured in preoperational and initial start-up stage（during decommissioning）.This paper takes the unit three of Qinshan Phase II nuclear power plant as an example,and describes the nuclear-class pipe vibration test flow,test objects,test condition and test result evaluation in detail.