In the early years, insulators were mostly used in utility poles. With the development of technology, one end of the high-voltage high-voltage wire connection tower was hanged with a number of disk-shaped insulators, which are used to increase the creepage distance, usually made of glass or ceramics. It is called an insulator. Insulators play two fundamental roles in overhead transmission lines, namely supporting the conductors and preventing current from returning to the ground. These two functions must be ensured. The insulators should not fail due to various electromechanical stresses caused by changes in environmental and electrical load conditions. Otherwise, the insulator will not have a major effect, which will damage the use and operating life of the entire line.