The structure of an insulator typically consists of three parts: the insulator head, the insulator column, and the insulator base.

The insulator head, located at the upper part of the insulator, functions to connect conductors. It is usually made of insulating materials such as porcelain or glass fiber-reinforced plastic (FRP).

The insulator column, serving as the main body of the insulator, not only plays a supporting role but also blocks the flow of current through its own insulating properties. It is also made of materials like porcelain or glass fiber-reinforced plastic.

The insulator base, located at the lower part of the insulator, is responsible for connecting to the support frame. It also uses insulating materials to ensure its insulating performance.

This well-designed structure can effectively isolate conductors from support frames, providing a solid guarantee for the safe and stable operation of power systems.

In addition, the material selection of insulators directly affects their insulating performance. Common insulator materials include porcelain and glass fiber-reinforced plastic. Porcelain insulators are known for their excellent mechanical strength and voltage resistance, making them particularly suitable for high-voltage transmission lines. Glass fiber-reinforced plastic insulators, on the other hand, are favored for their light weight and easy installation, and are often used in distributed power systems. Both types of materials can effectively prevent current flow, thus ensuring the safe and stable operation of power systems.