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1接触线安装曲线接触线安装曲线是接触钱张力和弛度相对于温度的变化曲线，是施工设计的重要组成部分，是接触网施工时架线调整的依据，同时也是运行维修中调整补偿器b值的依据，对接触网的安全运行有较大的影响。其计算公式为bx＝bmin＋θL＋nLα（madx－tx）（1）bx──坠流
1 contact line installation curve Contact line installation curve is contact with the money tension and sag relative to the temperature curve is an important part of construction design is catenary construction line adjustment based on the adjustment is also running maintenance compensator b value based on the safe operation of the catenary have a greater impact. It is calculated as bx = bmin + θL + nLα (madx-tx) (1) bx── Fallout