State any two electrical, mechanical and thermal properties of insulating materials.

State any two electrical, mechanical and thermal properties of insulating materials. 
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1 Answer

Answer :

i) Electrical Properties of insulating material:-

1. It should have high resistance.

2. It should have high breakdown voltage.

3. It should have high dielectric strength.

4. It should have low dielectric loss.

5. It should have high dielectric constant.

ii) Mechanical Properties of insulating material:-

1. It should have high mechanical strength.

2. It should be tough and flexible.

3. It should be light in weight.

4. It should not be porous otherwise it increases moisture holding capacity which reduces insulating property. 

iii) Thermal Properties of insulating material:-

1. It should have high thermal conductivity.

2. It should be non -inflammable.

3. It should withstand at high temperature.

4. Ii should have thermal Stability.

5. Co-efficient of thermal expansion should be low.
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