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Explain the shackle type insulator with neat sketch. 

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Shackle type insulator with neat sketch: 

image


Explanation:

* These insulators are clamped to the cross arms by one metal ‘U’ clamp with the help of bolts, nuts & washers.

* Function of Shackle insulator is to reduce excessive tension on line. Also on supporting structure (pole).


Applications:

1) Shackle insulators are used in following circumstances when line is subjected excessive tension. E.g. shackle insulators are used below 11 KV line & above 11 KV line strain insulators are used

2) Shackle insulators are also used when line is going straight but in case of vertical conductor configuration only 

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