Importance And Design Principles Of Insulator Length Selection In Lines With High And Low Lightning Areas

Generally speaking, in areas with less lightning, the length of suspension type insulator is at least equal to that of composite tension insulator on the same line, ensuring the rationality of the electrical clearance and the insulation strength of the system; in areas with more lightning, the length of high voltage transmission line insulators is at least 15% longer than that of overhead power line insulators on the same line, which can effectively improve the lightning resistance performance and reduce the risk of flashover and breakdown.