Insulator

Insulators are devices installed between conductors of different potentials or between conductors and grounding components that can withstand voltage and mechanical stress. There are various types and shapes of insulators. Although there are significant differences in the structure and appearance of different types of insulators, they are all composed of two main parts: insulation components and connecting hardware.
Insulators are a special type of insulation control that can play an important role in overhead transmission lines. In the early years, insulators were mostly used for wire poles, and gradually developed in the connection tower of high type High-voltage cable. Many disc insulators were hung at one end of the tower to increase the creepage distance. They are usually made of glass or ceramics, which is called insulators.
Insulators should not fail due to various mechanical and electrical stresses caused by changes in environmental and electrical load conditions, otherwise they will not have a significant impact and will damage the service and operating life of the entire line.