According to structure:

1. Suspension insulator

2. Rod insulator

3. Pin insulator

By material:

1. Porcelain insulator

2. Tempered glass insulator

3. Composite insulators

3 Characteristics of insulators

1, zero value self-destruct, easy to view

2. Good arc resistance and oscillation resistance

3, self-cleaning function is good, not easy to aging

4, the main capacity is large, the voltage is evenly distributed