Answer / kj

Insulators are generally white inside. A glase is put on
them during firing. The colour of the glase depends on the
manufacturer. Many have used brown but many others have
used white or blue glase as well.
As far as the insulating properties of the insulator it
generally does not matter what the colour is as long as it
does not conduct.

Answer / dipen patel

Genrrally its depends on manufacturer. also brown colour are easily visualable.In a india mostly brown are use but in a many country blue and white also used .not a actual reason for a brown .@@@@@Dipen patel.@@@electrical department @@@gutarat tec. uni.

Answer / jitendra

Because in these colour we can easily find Cracks and these Reflect less amount of Lights (Sunshine).

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