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Why Use Silicone Rubber For Composite Insulators?

Apr. 29, 2019

As a Polymer Insulator Supplier, let's analyze why silicone insulators are used in composite insulators. From the second half of the 19th century, the only insulating materials suitable for high voltages were ceramics and glass when erecting transmission lines. In the 1940s, ceramics and glass were no longer the preferred insulator materials due to the advent of polymer materials. European and American countries began to study polymer insulators. Then, the physical properties, electrical properties, long-term reliability and optimal shape of the electrical insulator were studied, and the productivity was continuously improved.

Among the polymer materials that can replace ceramics and glass, silicone rubber has had a practical performance since the 1960s and stands out among several polymers. Silicone rubber insulators have more advantages than ceramic insulators. First, it is lightweight, easy to handle and safe; in addition, ceramic insulators are often plagued by cracking, which can be broken by an impact. Silicone rubber insulators can withstand mechanical shocks such as vehicle crashing poles.

Composite Pin Insulator China

Although other polymer materials also have the advantages described above, only silicone rubber does not cause too much pollution to the environment. The polymer insulator can be made waterproof, so that leakage and surface arcing occur due to water drop. Silicone rubber insulators are more resistant to water than other polymer insulators and are durable materials that can be used in harsh environments for long periods of time.

Our company provides Composite Pin Insulator China. If you are interested in our products, please contact us.


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