瓦格纳采矿设备公司新近推出载重35.5t EMT-439型四轮驱动电动汽车,用于地下矿生产。该车设计使用悬挂在巷道顶板上的架线运行。电动汽车前端装有约200英尺(1英尺=0.3m)长电缆的电缆盘,能使电动汽车在装卸时离开架线区域。汽车离开架线时,电缆松开;回到架线下面时,电缆缠 Wagner Mining Equipment Co. recently introduced a 35.5t EMT-439 four-wheel drive electric vehicle for underground mining operations. The car is designed to run on overhead lines suspended from the roadway. A cable tray with a 200-foot (1 ft. = 0.3 m) long cable on the front of the EV allows the EV to exit the staging area during loading and unloading. When the car leaves the line, the cable is released; when it comes back under the line, the cable is tangled