详细说明
信号线MYQ 0.3/0.5KV
矿用通信电缆 固有衰减(800~1000HZ) dB/km ≤1.1 ≤1.3≤0.95
矿用通信电缆20℃时电缆绝缘线芯绝缘电阻 MΩ.km ≥3000
矿用通信电缆线对工作电容(800~1000HZ) uF/km ≤0.06
矿用通信电缆近端串音衰减(800~1000HZ) dB/500m ≥70
矿用通信电缆电感(800~1000HZ) uH/km ≤800
矿用通信电缆耐交流工频电压 1.5KV/1min通过
矿用通信电缆直流电阻差 ≤环阻的2%