Rod suspension insulatorsare made from silicone rubber materials, consisting of FRP core rod, silicone rubber housing, weathersheds and insulator end fittings.

The materials of Rod suspension insulators
◆ high temperature vulcanizing (HTV) silicon rubber
◆ room temperature vulcanizing (RTV) silicone rubber
◆ liquid silicone rubber (LSR)

The features of Rod suspension insulators materials
◆ HTV is cured at high temperature and pressure, catalyzed by peroxide induced free radicals or by hydrosilylation catalyzed by a noble metal, i.e. platinum, most of suspension insulator used this material
◆ RTV is cured at lower temperature, i.e. around room temperature, by condensation reaction as one component system. Some insulator made from RTV silicone rubber material.
◆ Little insulator made from LSR

Rod suspension insulators can be also made from porcelain materials used in electrical devices for supporting and insulating.

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Porcelain suspension insulator
Disc suspension insulator
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