Manufacture and experiment of a novel composite insulator

Serious lightning or icing often causes flashover on the insulators and probably results in a tripping accident. A novel composite insulator with lightning protection and icing flashover prevention is presented. The novel composite insulator with the rated voltage of 220 kV, specified mechanical load of 100 kN for the whole insulator and the nominal discharge current of 10 kA for the lightning protection part is designed and is manufactured. Basic performance, electrical performance, and mechanical performance are tested for the novel composite insulator. The experimental results show that the novel product meets the requirements of both standards of the common composite insulator and the common line metal oxide surge arrester and achieves the application conditions.