110kV Long Rod Composite Insulator With Eye

 composite Tension Insulator 

What would be a typical insulator for an overhead line transmission system?

 Today, insulators are primarily manufactured from polymers; however, many are still produced using porcelain, toughened glass, or ceramics. These components serve to separate the high voltages present in overhead conductors from the grounded pylons, effectively preventing electrical current from being conducted between the conductors and the pylons.