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GB6067—85《起重机械安全规程》3.4.8中规定,“起重机的金属结构及所有电气设备的金属外壳、管槽、电缆金属外皮和变压器低压侧均应有可靠的接地”。在实际安装和检验过程中,安装和检验人员往往把可靠的接地单纯理解为把起重机的金属结构及所有电气设备的金属外壳、管槽、电缆金属外皮和变压器低压侧是否有可靠的接地保护作为判定的依据,这是不科学的,也是很危险的。
GB6067-85 “Hoisting Machinery Safety Code” 3.4.8 stipulates that “the metal structure of the crane and all electrical equipment metal shell, pipe groove, cable metal skin and transformer low-voltage side should have a reliable ground ”. In actual installation and inspection, installation and inspection personnel often interpret reliable grounding as simply understanding whether the grounding structure of the metal structure of the crane and the metal shell of all electrical equipment, the slot, the cable metal jacket and the low-voltage side of the transformer are reliable The basis of the judgment is unscientific and dangerous.