Column insulator and manufacturing method thereof

Abstract

The invention discloses a column type insulator and a manufacturing method thereof, and relates to the technical field of insulators, the column type insulator comprises an insulator base body, and a first protective layer and a second protective layer which sequentially cover the surface of the insulator base body, the first protective layer is prepared from the following raw materials: silicon carbide, polyvinyl alcohol, fraxinus mandshurica clay / glass fiber composite material, wollastonite and diatomite / nano calcium carbonate composite material; the second protective layer is prepared from the following raw materials: a modified epoxy resin / montmorillonite composite material, modified hydrophobic silicon dioxide, polyacrylate and silicone acrylic emulsion. The invention has the beneficial effects that the first protection layer and the second protection layer are formed on the surface of the insulator substrate, so that the corrosion resistance, the wear resistance, the weather resistance and the anti-pollution flashover performance of the insulator can be improved.

Description

technical field [0001] The invention relates to the technical field of insulators, in particular to a column insulator and a manufacturing method thereof. Background technique [0002] Insulators are special insulation controls that can play an important role in overhead transmission lines. In the early years, insulators were mostly used on utility poles, and gradually developed into a high-voltage wire connection tower with a lot of disc-shaped insulators hanging on one end, which plays two basic roles in overhead transmission lines, namely, supporting wires and preventing current from returning to the ground. It is also to increase the creepage distance. There are many types of insulators, which can be divided into post insulators, suspension insulators, pin insulators, butterfly insulators, and tension insulators according to their structures. According to the different insulating materials used, they can be divided into porcelain insulators, glass insulators and compos...

AI Technical Summary

Problems solved by technology

The number of pollution flashovers is not much among several kinds of external insulation, but the loss it causes is the largest, which is 10 times the damage caused by lightning flashover. The requirements for the surface of the insulator are also very high. It is basically consistent in a relatively wide area, so once a pollution flashover occurs under the working voltage, it is very likely that a large number of insulators have problems at the same time, and the impact is very serious. Therefore, the realization of the self-cleaning property of insulators is particularly important.

[0004] With the rapid development of industry, the rapid increase of transmission capacity, and the continuous improvement of the voltage level of power transmission and transformation equipment, pollution flashover accidents of power system insulators have become increasingly prominent. The occurrence of pollution flashover accidents is large, and the success rate of reclosing is reduced, which often leads to long-term failures. Temporary power outages cause heavy losses to users and great harm to the national economy

Images