Normal-pressure line pin insulator P-20T performance and size

Baifu special general high-voltage line pin insulator P-20T main dimensions and performance; rated voltage 20kv, structural height 245mm, the width of the structure of 228mm, the height of the insulating porcelain 165mm, an iron pillar (exposed) 45mm, nominal creepage distance 370mm, bending failure load 13.2kn, power frequency wet flashover voltage 57kv, frequency breakdown voltage 111kv, 50% full-wave impulse flashover voltage 140kv, the above information is provided by Hebei Baifu special power. Insulator is a special insulation control, it can play an important role in the overhead power transmission lines. Early years insulator used for poles, slowly developed in the high-pressure end of the wire connecting the tower to hang a lot of disk-shaped insulator, it is to increase the creepage distance, usually made of glass or ceramic, called insulators. Insulators for overhead transmission line plays two fundamental role, namely support wires and prevent current back ground, these two actions must be guaranteed, the insulator should not change because of various electrical and mechanical stress caused by environmental and electrical load conditions occur and fail, Otherwise, it will not have a significant insulator effect, it will damage the use and operation of the entire line of life.