建议首先查看各线束的接头有没有松动，接头松动的车辆工作时很容易产生火花。
The first check the wiring advice did joint, joint loose loose vehicle work easily sparks.
优良的抗震性，一般机械连接母线槽接头，在墙体受震动后会发生接头松动，而预制分支电缆不会受到影响。
Good earthquake resistance. commonly, mechanical connectors for bus-bars will become flexible after the wall shakes because of earthquake, but the wall shakes have no effect on the branch cable.
检查钢轨接头，不得有错位及错位；安装无松动、脱落。
2 check rail joints, shall not have dislocation and dislocation; installation without loosening, shedding.
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