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Pin insulators

Pin insulators can be divided into porcelain pin insulators and composite pin insulators in accordance with insulator materials. Pin insulator shall be manufactured, tested and designed in accordance with IS: 731/1971 and IEC: 61109 / 92-93.

Pin insulators

porcelain Pin insulators

The porcelain pin insulators shall generally conform to IS: 731/ 1971 and any amendments up to the same.

Pin insulators main technical parameters:

Nominal system voltage kV 11 22 33
Corresponding highest system voltage kV      
Frequency 50Hz with 3% tolerance
Neutral earthing Effectively ground
Min. impulse withstand voltage kV 75 125 170

We also produced ANSI and IEC pin insulators or manufactured by clients’ requirements.


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Orient Power is a pin insulator manufacturer of porcelain pin type insulator and composite pin insulators.