同芯导体兼屏蔽零线电力电缆的应用

同芯电缆由于利用了同芯导体作为PE线,减小了电缆发生单相接地时的短路阻抗,提高了单相短路电流,因此,它能提高线路首端过流保护装置的灵敏度,使电缆及接在其上的电器设备得到有效的短路保护。

Application of Common Core Cable

Because common core cable uses common core conductor as PE line,the short-circuit impedance is reduced when the single phase short circuit happen,and the single phase short circuit current increased.The more single phase short circuit current enhance the sensitivity of overcurrent protection in head end of the wiring.That let the cable and the electrical appliance connected with cable get the more effective short-circuit protection.