最新电线电缆载流量表大全.doc

《最新电线电缆载流量表大全.doc》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、载流量对照表导线截面积（mm²）11.52.54610162535507095120150185载流量（25度）192432425575105138170215265325375430490断路器规格（A）102025405063100125160200250315350400铜芯线载流量表（1）铝芯线载流量表（2）导线截面（mm²）11.52.54610162535507095120150185240及以上载流是截面倍数9876543.532.521.7载流量（A）9142332486090100123150210237.5300300370408断路器规格（A）61016

2、20253240506380100125160200250350注线径选择一般为设备额定电流的1.7倍，由于断路器需要保护线路，所以断路器的额定电流应小于导线所能承受的电流I线=In*1.7In为设备额定电流I断=I线/1.2I线为线径所承受的电流，I断为断路器额定电流In

3、JV11.5mm²202530.8626.7326.7326.731616131830.86131330.8622.5mm²283518.918.918.918.9233518.9182218.9183018.934mm²385011.7611.7611.7611.76343811.76233411.76284011.7646mm²48607.867.867.867.8640557.8632407.8635557.86510mm²65854.674.044.044.0555754.6745554.6748804.67616mm²901102.952.552.562.55701

4、082.960752.665652.6725mm²1151501.871.621.621.631001401.9801001.6861051.6835mm²1451801.351.171.171.191251751.31051301.21081301.2950mm²1702301.010.870.880.914521011301600.871381650.871070mm²2202850.710.610.620.651902650.71652100.611752100.611195mm²2603500.520.450.450.52303300.522002600.452202

5、600.4512120mm²3004100.430.370.380.422704100.422353000.362553000.3613150mm²3504800.360.320.330.373104700.352753500.33403600.314185mm²4105400.30.260.280.333605700.293204100.254004150.2515240mm²4806400.250.220.240.294306500.243904850.214704950.2116300mm²5607400.220.20.210.285007000.214505600.1

6、95005800.1917400mm²6508800.20.170.20.266008200.1918500mm²75010000.190.160.180.2519630mm²88011000.180.150.170.2520800mm²110013000.170.150.170.24211000mm²130014000.160.140.160.24(ΔU压降)计算公式=I总电流×R总电阻(I总电流)计算公式=P功率/U电压/cosθ功率因素0.8～0.85(R总电阻)计算公式=ρ导体电阻率*L线长/线截面积(ρ铜芯电缆电阻)：0.0174每米(ρ铝芯电缆电阻)：0.0283

7、每米第15页第15页一、塑料绝绝电线在空气中穿管敷设的载流量（包括阻燃，耐火，不燃烧型）1，500V单芯聚氯乙烯绝缘电线在空气中敷设长期连续负荷准许载流量，标称截面mm2长期连续负何准许载流量A相应电线表面温度℃铜芯铝芯0．7516-601．019-601．52418602．53225604423260655426010755960161058060251381056035170130605021516560702652056095325250601203752856015043032560185490