The most important bridge crane bridge crane inspection of several components must have wiring diagrams, electrical engineers must learn more about the operation of the entire electricity demand bridge cranes, each electronic component performance, avoiding the installation process there are different models, different cables required or resistance, that is bound to affect the overall speed of completion of the work. Installation process does not appear to have damage electronic components or cables and wires, because leakage accidents in overhead crane operation, it is very serious, it may cause personal injury. During installation, be some barrier, such as above a line arrangement problem, we must clean up the dust, so that the line arrangement is more reasonable. The most important bridge crane inspection of several components, such as brake components, control system components, electric hoist. Slip lines and collector are installed, adjust the conductive frame, so the collector at the state level, and to the collector center center coincides with the slip line. In the bridge crane commissioning is not allowed collector has jumps. If beating, you should check the reason and eliminate. Between live parts on the bridge crane, live parts and the distance between the metal structure should be greater than 20 mm. Bridge crane operation, may produce a relatively shaky live parts and metal structure should be greater than the minimum distance between 40 mm, between the junction box terminals clearances greater than 12 mm.