Joson wapita patsogolo kwambiri pakupanga ukadaulo wa 70kN disc insulator, ndipo kukhazikika kwa kulimba kwa mutu wowongoka wowongoka ndi wopitilira 80KN.

Joson wapita patsogolo mwachangu muukadaulo wopanga

Kukhazikika kwakuyesa kwamphamvu kwa insulator ya mutu wowongoka (cylindrical head disc insulator) ndi yopitilira 80KN

Kuyesa zitsanzo zazinthu zazikulu zotumiza kunja

Mayeso amagetsi amagetsi a zinthu zadothi zadothi

Kuyeza kwa porcelain creepage yamagetsi