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Question

If cable of homogeneous insulation has maximum stress of 5kV/mm, then the dielectric strength of insulation should be

A.

2 kV/mm 

B.

2.5 kV/mm

C.

1 kV/mm         

D.

5 kV/mm

Answer ( Option D)

5 kV/mm

Solution

The cable of homogeneous insulation has maximum stress of 5 kV/mm then the dielectric strength of insulation should be 5 kV/mm.

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