BVV300/500铜芯聚氯乙烯绝缘聚氯乙烯护套电线主要技术参数导体标称 截面 mm2导体结构根/线径绝缘厚度规定值mm护套厚度mm平均最大外径mm20C时导体电阻最大值Q/km电线最高工作温度C70C时 绝缘电阻最小值MQkm浸水试验 电压V工作温度下环境40C时 电线的 载流量（空气中）A电线参考重量kg/km1.51/1.380.70.8512.1700.0112000192.51/1.780.80.85.77.41700.012000264641/2.250.80.95.94.61700.00852000347061/2.760.80.96.83.08700.007020004490107/1.351.00.98.81.83700.0065200062144167/1.701.01.010.11.15700.0050200085215257/2.121.21.112.20.727700.00502000110328357/2.521.21.213.50.524700.004020001354365019/1.781.41.315.60.387700.004520001705807019/2.121.41.417.70.268700.003520002208109519/2.501.61.520.30.193700.00352000270109312037/2.031.61.622.20.153700.00322000320136837/2.2537/2.5061/2.2561/2.51.82.22.41.82.22.224.725.529.0531.80.1240.09910.07540.0601707070700.00320.00320.00320.003220002000200020003604255105851660205026806240150185240300