The difference between multi-pole trolley wire and single-pole safety trolley wire

The difference is as follows: The cross-sectional area of a single-pole safety conductor line conductor is large, and the amount of current that it carries is also large, which is much larger than that of multi-pole. The magnitude of the load current is also determined. The single-pole trolley wire is suitable for a large power crane workshop, and the multi-pole trolley wire is also used in a small power workshop.

The difference two: the use of different conductor materials, unipolar slip conductors of aluminum alloy conductor, multi-pole conductor of the copper conductor, the two conductors are different, it determines the resistance of the two are different, of course, the conductivity of the two The loss is relatively small.

Difference three: The application occasions are different. According to my understanding, the unipolar trolley line is suitable for most occasions. The multipolar trolley line is mainly used in power plants, steam workshops and other occasions, and is not as wide as the unipolar trolley line.

Difference four: The structure is different. The unipolar slip conductor is a conductor, and the multi-pole contact line is composed of three, four, six, and more copper strips, and the accessories of the two are also different.