TENIO

In underground coal mines operating room-and-pillar extraction, shuttle cars are the primary batch haulage vehicles that ferry coal from the continuous miner face to the feeder-breaker. These electrically powered vehicles — typically operating at 550–1,000 V AC — depend on a flexible trailing cable that is continuously reeled and unreeled as the shuttle car trams distances of up to 150 m or more. Cable damage from runovers, corkscrewing, and abrasion represents one of the largest sources of unplanned downtime in underground coal operations. 在采用房柱法开采的井下煤矿中，穿梭车是将煤从连续采煤机工作面运至给煤破碎机的主要间歇式运输车辆。这些电动车辆通常在 550–1,000 V AC 下运行，依靠柔性拖曳电缆在长达 150 m 或更远的距离内持续收放。电缆被碾压、扭结（corkscrewing）和磨损造成的损坏是井下煤矿非计划停机的最大来源之一。