post insulator

Post insulators are a special type of insulation control that can play an important role in overhead transmission lines. In the early years, post insulators were mostly used for power poles, but gradually developed into hanging many suspended insulators at one end of high voltage power line connection towers to increase the creepage distance. They are usually made of silicone or ceramic and are called insulators. Insulators play two basic roles in overhead transmission lines, namely supporting conductors and preventing current from returning to ground. These two roles must be guaranteed, and insulators should not fail due to flashover breakdown caused by changes in environmental and electrical load conditions. Otherwise, insulators will lose their function and damage the service life of the entire line.