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123kV Pylon Insulator
Single glass dish from 275kV insulator
70kV plastic Pylon Insulator

High Voltage Pylon Insulators



The picture on the right shows a 132kV pylon insulator. This example is constructed with 9 individual glass insulators, also known as "sheds". These link together in a chain to form the complete insulator with the correct insulator properties for the applied voltage.

The picture below shows one segment from a larger insulator. Once coupled together a pin locks the insulator dishes in place. The slot for the pin is just visible in the lower picture.



The image on the left is a modern high voltage insulator made from a glass-fibre core and molded rubber "sheds". These are becoming more popular in lower voltage installations as they are vandal resistant. This one is rated for 70kV.

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