What are the three white things installed on rural high-voltage lines?

Three white ceramic objects are installed on high-voltage lines in rural areas.

Insulators on the tower also play a very important role. We should notice that the surface of this kind of ceramic insulator is very smooth, so there will be no water accumulation. It can effectively prevent the current between the power tower and the high-voltage line from passing. If this insulator does not exist, the current of the high-voltage line will be conducted to the ground through the overhead tower.

Function of insulator:

In fact, this is also because of the above-mentioned impurity surface adsorption problem. In addition to fog, industrial emission pollution is also adsorbed on the insulator surface. When it is dry, these impurities will not affect the insulation effect, but once it is wet, it will lead to flashover accidents.

Simply increasing the length of insulator is also feasible in theory. But in this case, the tower must be high enough, otherwise hundreds of kilovolts of high-voltage transmission lines will be pulled to the ground. Obviously, the increase of iron tower will increase the cost and the lightning withstand level will be limited.

Although in the design, electric workers have fully considered all kinds of situations that will cause electric shock accidents. But just in case, you should pay attention to the safety tips in front of the high-voltage tower and try to stay away from the dangerous area. Ensuring your personal safety is responsible for yourself and your family.