Cap and pin type suspension insulators are also called suspension insulator and are available for ball- socket or clevis –eye insulator coupling.

According to insulator material, Cap and pin type suspension insulators can be divided into
◆ Porcelain insulator: made of high aluminum porcelain material
◆ Polymer insulator: made of silicone rubber
◆ Glass insulator: made of tempered glass

Cap and pin type suspension insulators are made from flint body porcelain or high-strength alumina-body porcelain, depending on the strength requirements of the unit. Assembled units are subjected to rigorous electrical and mechanical tests before shipment.

Cap and pin type suspension insulators are made from HTV silicone rubber housing or epoxy housing, depending on the good pollution requirements of the unit. Each parts should be tested in accordance with insulator specification before shipment.

Porcelain Cap and pin type suspension insulators should be glazed provide a rough surface for permanently attaching the hardware and distribution the load evenly through the porcelain.

Polymer Cap and pin type suspension insulators should be coated suitable glue between FRP core and silicone rubber housing to provide the service life.

Relative Articles:
Composite suspension insulator
Porcelain suspension insulator
Disc suspension insulator
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