Insulator PDF
Electrical Insulator Types
According to insulator material, electrical insulator types can be:
Porcelain insulator: material is porcelain or ceramic
Polymer insulator: material is silicone rubber
Glass insulator: material is toughed glass
HDPE insulator: material is HDPE
According to usage voltage, electrical insulators types can be:
Low voltage insulator: the nominal voltage is under 1KV.
Middle voltage insulator: normally means 6-35KV
High voltage insulator: nominal voltage is above 35KV
Ultrahigh voltage insulator-UHV: above 500KV transmission lines
Extra-high voltage insulator-EHV: above 1000KV transmission lines
According to usage ways, electrical insulator types can be:
Disc suspension insulator: to hang conductors by strings
Pin type insulator: to support normally 11-36kv voltage system distribution lines
Line post insulator: to support normally 11-132kv voltage system, and have different assembly ways.
Shackle insulator and spool insulator: connect insulators and wire used on low voltage lines.
Stay insulator: connect stay wires to fix wooden poles.
Station post insulator:used on substations or electrical equipment.