In the operation of a power system, the current between phases to phases，between phases and ground (or neutral lines) when an abnormal connection (short circuit) occurs. ...

A: The cable bridge is suitable for laying power cables and control cables indoors and outdoors in general industrial and mining enterprises. It can also be used for indoor and outdoor installations in telecommunications, radio and television departme...

Answer: There are the following types of insulated wires: polyvinyl chloride insulated wires, polyvinyl chloride insulated flexible wires, nitrile butadiene chloride mixture insulated flexible wires, rubber insulated wires, agricultural underground bu...

Answer: It can be divided into bare wires, insulated wires, heat-resistant wires, shielded wires, power cables, control cables, communication cables, radio frequency cables, etc....