矿山在加工场所和仓库使用的电动起重设备桥式行车及龙门行车,供行车行走的路轨长的达数百米,由千洪给行车架空滑触线电源开关都是装置在路轨一端的墙上或配电盘上。当行车停在另一端要使用时,驾驶员开启电源很不方便,切断电源也是如此。若作业完毕未切断电源,架空沿线上就会带380伏电压,容易出事故。 Mining in processing facilities and warehouses use of electric lifting equipment Bridge driving and gantry driving for the travel of the rails up to several hundred meters long, from the thousand Hung to the overhead line trolley line power switch are installed at the end of the rail wall On or on the power strip. When the car parked at the other end to be used, the driver is very inconvenient to turn on the power, cut off the power as well. If the job is completed without cutting off the power supply, the overhead line will carry 380 volts, which is easy to cause an accident.