The DC test, which is an effective means for the diagnostics of oil impregnated paper insulated cable, is still used even now, but it is ineffective and harmful for the plastic insulated cable.
直流电压试验作为一种对油浸纸绝缘电缆非常有效的方法应用至今，但它对塑料绝缘电缆是无效而且有害的。
Copper conductor PE insulated Al-plastic tape screened PVC sheathed braiding screened inspecting equipment and computer control cable.
铜芯聚乙烯绝缘铝塑复合带屏蔽聚氯乙烯护套编织总屏蔽检测设备及计算机用控制电缆。
Copper conductor PE insulated Al-plastic tape screened PVC sheathed braiding screened inspecting equipment and computer control cable.
铜芯聚乙烯绝缘铝塑复合带屏蔽聚氯乙烯护套编织总屏蔽检测设备及计算机用控制电缆。
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