Perforated Base Insulation Pins can be classified according to different criteria:

1. Classified by material:

-Ceramic insulation needle: Ceramic materials have excellent insulation properties and high temperature resistance, suitable for high voltage and ultra-high voltage power systems.

-Composite insulation needle: Made of composite materials such as glass fiber reinforced resin, it has the characteristics of lightweight, high strength, and corrosion resistance, and is widely used in power systems of various voltage levels.

2. Classified by purpose:

-High voltage insulation needle: mainly used in high-voltage transmission lines and substation equipment to ensure the safe operation of the power system.

-Low voltage insulation needle: suitable for connecting and protecting electrical equipment in low-voltage distribution systems, such as homes, factories, and other places.

3. Classified by structure:

-Single needle insulation needle: simple structure, easy to use, suitable for small power equipment and low-voltage systems.

-Multi needle insulated needle: composed of multiple needle bodies, suitable for high current and high voltage applications, providing higher safety and reliability.