常用铜导线(BVR)载流量对照表

1、常用铜导线（BVR）载流量对照表序号铜电线型号单心载流量电压降mv/M 品字型电压降mv/M 紧挨一字型电压降mv/M 间距一字型电压降mv/M 两心载流量(25。C)(A)电压降mv/M 三心载流量(25。C)(A)(25。C)(A)0.950.850.7VV YJV VV YJV VV YJV 11.5mm 2 /c 202530.8626.7326.7326.731616131822.5mm 2 /c 283518.918.918.918.9233518.9182234mm 2 /c 385011.7611.7611.7611.76343811.76233446mm 2 /c 48607

2、.867.867.867.8640557.863240510mm 2 /c 65854.674.044.044.0555754.674555616mm 2 /c 901102.952.552.562.55701082.96075725mm 2 /c 1151501.871.621.621.631001401.980100835mm 2 /c 1451801.351.171.171.191251751.3105130950mm 2 /c 1702301.010.870.880.914521011301601070mm 2 /c 2202850.710.610.620.651902650.7165

3、2101195mm 2 /c 2603500.520.450.450.52303300.5220026012120mm 2 /c 3004100.430.370.380.422704100.4223530013150mm 2 /c 3504800.360.320.330.373104700.3527535014185mm 2 /c 4105400.30.260.280.333605700.2932041015240mm 2 /c 4806400.250.220.240.294306500.2439048516300mm 2 /c 5607400.220.20.210.285007000.214

4、5056017400mm 2 /c 6508800.20.170.20.266008200.1918500mm 2 /c 75010000.190.160.180.2519630mm 2 /c 88011000.180.150.170.2520800mm 2 /c 110013000.170.150.170.24211000mm 2 /c130014000.160.140.160.24YJV绝缘用的是交联聚乙烯.VV绝缘用的是聚氯乙烯.YJV电缆工作温度达90度，而VV只有70度，同截面积YJV电缆载流量大。VV类电缆导体运行最高额定温度为摄氏70度，短路时（持续时间小于5秒）最高温度不超过摄

5、氏160度。YJV类电缆导体运行最高额定温度为摄氏90度，短路时（持续时间小于5秒）最高温度不超过摄氏250度。YJV从长远看比VV好（使用寿命长等），但比VV贵。从技术经济指标看，三芯的YJV比VV电缆的各项参数都要高。在民用建筑中推荐使用YJV，其载流量比VV的大，更为主要的是在电气火灾时，由于其绝缘材料不含氯，燃烧时不会产生有毒气体。电压降mv/M 四心载流量(25。C(A) 电压降mv/M VV YJV 30.86131330.8618.9183018.911.76284011.767.8635557.864.6748804.672.665652.61.6861051.61.21081301.20.871381650.870.611752100.610.452202600.450.362553000.360.33403600.30.254004150.250.214704950.210.1950