Are insulators resistant to pollution?

The conductor of electric power line is fixed on the pole tower by means of insulator and fittings. Insulators used for wire and tower insulation, in operation, not only to withstand the action of working voltage, but also by the action of overvoltage, but also to withstand the action of mechanical force and temperature change and the influence of the surrounding environment, so insulators in good insulation performance and a certain mechanical strength. Glass insulator.

Insulators are usually made of corrugated surfaces.

Generally, this is because, first, it can increase the leakage distance of the insulator (also known as creepage distance), and each wave pair can block the arc.

Second, when it rains, the sewage flowing down from the insulator will not flow directly from the upper part of the insulator to the lower part, so as to avoid the formation of sewage column and short circuit accident, which will play the role of blocking the sewage flow;

Glass insulator

Third, when the polluted substances in the air fall on the insulator, the polluted substances will not be evenly attached to the insulator due to the uneven wave twist of the insulator, which improves the anti-pollution ability of the insulator to a certain extent. There are many kinds of insulators used in power lines, which can be classified according to their structure, insulating medium, connection mode and carrying capacity.

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