Composite Insulator

Early insulator used for wire rod, with the development of science and technology, and slowly developed in high type high-voltage wire connecting one end of the tower hung up a lot of disk insulator, it is in order to increase the creepage distance, usually made of glass or ceramic, called insulators. Insulator in overhead transmission line plays two basic functions, namely the support wire and prevent current back, the two must be guaranteed, the insulator should not fail due to changes in the environment and electric load conditions resulting from the various electrical and mechanical stress, otherwise the insulator wouldn't be significant role, it will damage the use and the operation life of the whole line.