With the developing of power electric industry, composite insulator of organic insulator material has been popular for its excellent power electric capability. It has token the place of traditional ceramic insulator. Umbrella- -shaped compos-ite insulator is made of silicon rubber to sure insulator outside. High intensity epoxy club supplies internal insula-tor and bearing mechanic load, This production adopts silicon rubber umbrella-shaped mould, core club and metal clip pressure connection craftwork, improving reliability,And it has merit as following:

1. Advanced electric capacity and strong dirty proof. The silicon rubber with strong bibulous power improve the level of dirty proof . The voltage of wet proof and dirty proof is equal to 2-2.5 times of ceramic insulator. It reduces dirty incident and improve economic and reliability of network,

2. Composite insulator has internal bearing epoxy of high tensile strength, 2-3 times to normal steel and 8- 10 times to high intensity, so improve greatly mechanic capability.

3. adopts advanced pressure connection craftwork in bor-der and mandrill to assure reliable mechanic intensity.

4. Silicon rubble has excellent resist high and low temperature, season, old and electron rot capability, And solid frame with epoxy club, it is sure of no damp and needn’t clear.

5. Small volume, light weight( 1/4- 1/8as to same voltage),adopting standard ball and socket constructor for easy transport.

6. Good anti-strike, astigmatic and anti-blast capability.