State the type of insulating materials under Class Y and Class B.

State the type of insulating materials under Class Y and Class B.
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1 Answer

Answer :

The type of insulating materials under Class Y :

1. Cotton 

2. Silk

3. Paper

4. Rubber

5. PVC

The type of insulating materials under Class B:

1. Backelite

2. Impregnated varnish

3. Mica

4. Fiber glass

5. Asbestos 
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