Sometimes, the factors of Strain type insulators have properties, performance, technical parameters, voltage and materials.

Strain type insulators materials are mainly of glass, porcelain and polymer. Each kind material has different performance. Composite suspension insulator is one of strain type insulators.

Polymer Strain type insulators are one of suspension insulators consisting of FRP core, silicone rubber housing, shed and end fittings. Fiber glass reinforce core (FRP) is one of polymer suspension insulators materials, this laminate is quite common due to its superior strength and excellent electrical properties even in humid environment.

With the economic and technic developing, polymer material of electrical insulator materials gradually replace of porcelain. Strain type insulators is normally used on transmission and distribution lines.

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