Model:Standard type
Glass disc insulators are used for insulating and fixing wires in high voltage overhead transmission and distribution lines. Different types of glass disc insulators are used on different voltage levels.
Due to the high mechanical strength of the surface layer of the glass insulator, the surface is not prone to cracks. The electrical strength of glass generally remains unchanged throughout the operation period, and its aging process is much slower than that of porcelain, so glass insulators are mainly scrapped due to self-damage, which occurs within the first year of operation, but the defects of porcelain insulators are only after a few years of operation. began to be discovered years later.
Product Parameter (Specification)
Product Model | U40B/110 | U70B/140 | U100B/140 | U120B/146 | U160B/170 | |
Main dimension,mm | D | 178 | 255 | 255 | 255 | 280 |
H | 110 | 140 | 146 | 146 | 170 | |
Creepage distance(mm) | 185 | 320 | 320 | 320 | 400 | |
Socket Coupling(mm) | 11 | 16 | 16 | 16 | 20 | |
Mechanical failing load( mm) | 40 | 70 | 100 | 120 | 160 | |
Mechanical routne test(kN) | 20 | 35 | 50 | 60 | 80 | |
Wetpower frequency withstand voltage(kV) | 25 | 40 | 40 | 40 | 45 | |
Dry lightning lipulse withstand voltage(kV) | 50 | 100 | 100 | 100 | 110 | |
Impuise puncture volltage(P.U) | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | |
Power frequency puncture vollage (kV) | 90 | 130 | 130 | 130 | 130 | |
Radio influence voltage(μV) | 50 | 50 | 50 | 50 | 50 | |
Corona visual test (kV) | 18/22 | 18/22 | 18/22 | 18/22 | 18/22 | |
Power frequency electric arc voltage | 0.12s/20kA | 0.12s/20kA | 0.12s/20kA | 0.12s/20kA | 0.12s/20kA |
Packaging & Shipping
PackagingExpress:We have a cooperation with several international express,so can offer a good price.Or can send to you by your own express.