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Types of insulator in transmission line

There are several types of insulator in transmission line.

Transmission line insulators are devices used to contain, separate or support electrical conductors on high voltage electricity supply networks. They are made of polymers, glass and porcelain--each with different densities, tensile strengths and performing properties in adverse conditions.

Types of insulator in transmission line:
Pin type insulator
Pin type insulators are used for the transmission of lower voltages. A single pin type insulator is used to transmit voltages up to 11 kV (kilovolts) and higher voltages require two-, three- or four-piece pin insulators

Suspension type insulator
Suspension type transmission line insulators suspend and support high voltage transmission lines.

Strain type insulator
Strain type insulators are horizontally suspended suspension insulators.

Line post insulator
line post insulator is used on distribution lines and transmission lines upto 132KV

Shackle type insulator
Shackle type insulators, similar to strain type insulators, are used on sharp curves, end poles and in section poles.

Stay insulator
Stay insulators, also called egg insulators, are primarily used to prevent stay wires from becoming energized from accidentally broken live wires.


 

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