桥架 计算序号电缆截面积各类电缆半径3+1c3+2c4+1c3c4c电缆直径根数电缆直径根数电缆直径根数电缆直径根数电缆直径根数1413.414.314.513.72614.615.615.914.931017.318.418.9184162021.421.920.652523.825.426.224.863525.827.528.827.675029.932.133.431.687034.637.138.836.899539.342.244.141.81012044.247.749.546.5111504851.454.151.61218553.857.760.557.61324060.564.968.264.91430066.97475.171.8总的电缆面积所需桥架截面面积（40%计算）电缆 横排所需总宽度(注：电缆是相邻紧贴排列)各类电缆面积和各类电缆横排所需宽度5c电缆直径根数14.80016.10019.60022.40027.20030.500350040.80046.40051.70057.40064.10072.3008000000
