9.4 Earthing and lightning protection

所属栏目:水电水利工程液压启闭机

9.4.1 For a hydraulic hoist, all the electrical equipment, normaluncharged metal shells, metal pipes, metal cable sheath, and thehydraulic cylinder supporting frame shall be reliably grounded. Thecross section of grounding wire shall be checked for dynami ......(本文共 448 字 )     [阅读本文] >>


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