LINGYUE ELECTRIC POWER

Composite insulator

Release Time：2024-12-11

Composite insulator is a kind of good insulation control element which plays an important role in overhead power transmission lines.

Composite insulators can be divided into: linear composite insulators and power plants, electrical composite insulators. It can also be divided into rod suspension composite insulator, pin composite insulator, cross-arm composite insulator, columnar composite insulator, wind-deflecting composite insulator, etc.

In order to improve the electric field distribution and arc ignition performance of the composite insulator, two voltage equalization tests were carried out on the composite insulator above 10kV. Practice has shown that the composite insulator has the following advantages: strong antifouling overlapping ability. The surface of the composite insulator is hydrophobic, and the water on its surface is granular, making it difficult to form a conductive path. In addition, the umbrella disk diameter of the composite insulator is small, the creepage distance is long, the surface resistance is high, the leakage current is small, and the pollution lightning pressure is large. High strength, light weight. Due to the high tensile strength of the core, the composite insulators are easy to manufacture. It can reduce the stress of the tower body, reduce the installation and maintenance intensity, and save a lot of costs. Small size, light weight. Since the composite insulator is small in size, light in weight, flexible and not easy to damage, it brings great convenience to transportation, installation and maintenance.