Pin Insulator

A pin insulator is a device that isolates a wire from a physical support such as a pin (a wooden or metal dowel of about 3 cm diameter with screw threads) on a telegraph or utility pole. It is a formed, single layer shape that is made out of a non-conducting material, usually porcelain or glass.They come in various designs, with common types including pin insulators, suspension insulators, and strain insulators, each serving specific purposes in the overhead line configuration. Pin insulators are mounted on the cross arms of poles to support the conductors.Used on straight running transmission lines to transmit voltages upto 33 kV. Strain type. horizontally suspended suspension insulators that can handle large mechanical stresses such as a river crossing.Advantage: Most common, non-flammable, resistant to moisture damage, and effectively blocks heat flow. Disadvantage: It can be highly irritating to your skin and lungs if you come in direct contact with it. Installation: Fairly simple, and you can do it yourself.