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含缺陷压力管道起裂载荷的确定对于石化、化工压力管道的缺陷评定具有很重要的意义。进行了含穿透裂纹碳钢管道的断裂试验，并尝试采用直流电位法实测了６根２０＃碳钢管试样的起裂载荷，同时，利用工程上常用的计算含缺陷压力管道起裂载荷的ＥＰＲＩ工程方法进行了计算，两者比较可见，所采用的测试方法是可行的
Determining the initiation load of defective pipeline with pressure is of great significance for the assessment of defects in petrochemical and chemical pressure pipelines. The fracture test of carbon steel pipe with penetration crack was carried out. At the same time, the starting load of six 20 # carbon steel pipe samples was measured by DC potential method. At the same time, EPRI engineering method has been calculated, the two are visible, the test method is feasible