Silicone rubber for electrical insulators consists of FRP core, silicone rubber shed, housing and end fittings, which is also called composite insulator. Composite insulator voltages levels comprise consist of 110KV, 330KV, 400KV, 500KV, 750KV and so on. As one main of composite insulator, Composite pin insulator voltage has 11kV/12kV, 15kV 22kV/24kV, 25kV, 33kV/36kV and 35kV.

Silicone rubber for electrical insulators function
◆FRP core is the skeleton of silicone rubber insulator, plays an umbrella cover, inner insulation and hardware on both ends of the connection, and withstand the mechanical load multiple role. 
◆FRP core for electrical insulator has very high tensile strength, good dielectric properties, and chemical corrosion resistance, to bending fatigue, creep resistance and impact resistance. 
◆Silicon rubber housing main protect a core rod, block rain and snow, increase the creep age distance and the effect of external insulation products, is a polymer of silicone rubber for electrical insulators as the matrix, complementary with flame retardant, anti-aging agent, coupling agent, such as packing by high temperature and pressure curing. 
◆Silicone shed has the good hydrophobic and mobility, as well as good corrosion resistance, ageing resistance, electric insulation performance, etc. 
◆And Silicone rubber for electrical insulators has the very high slop lightning and ground resistance, uniform voltage distribution, compared with porcelain insulator the flashover voltage under the same conditions is more than 2 times of porcelain.

Silicone rubber for electrical insulators is usually used on distribution and transmission lines in the electrical industries. We are one of the main manufacturer and suppliers in China. We produce varied silicone rubber pin insulators from 10kv to 1000kv with high quality and competitive price. If you are interested in this product, you can email to us by electrical insulators email

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