Description : State the type of insulating materials under Class Y and Class B.
Last Answer : The type of insulating materials under Class Y : 1. CottonĀ 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. AsbestosĀ