Aerodynamic suspension porcelain insulator has big spacer, generally, this is used on the top of suspension string, which is good efficient for preventing bird and anti-penetrated freezing.

  The shed of aerodynamic disc suspension insulator is special big, and no edge under shed, which is belong to aerodynamic shed, with good performance of self-cleaning by wind and rain, and would be little contamination left, so this type suit to use in desert area. To insert this type into middle and top insulator string could prevent inhibition ice tumor and bird shit, and reduce or avoid pollution flashover.