紧急断电开关作为起重机械重要的电气保护装置,在安全运行中起着非常重要的作用。由于检验人员对该开关内涵的理解程度不同,因此,在日常检验过程中,对该开关是否合格的判定标准也存在一定的差异。《起重机械监督检验规程》中规定:“起重机必须设置紧急断电开关,在紧急情况下,应 As an important electrical protection device for lifting machinery, emergency power-off switch plays a very important role in safe operation. Because inspectors have different understanding of the connotation of the switch, there is a certain difference in the criteria for determining whether the switch is qualified during the routine test. “Crane inspection and supervision regulations,” provides: "Cranes must set the emergency power switch, in an emergency, should