Q.Solid type cables are not considered suitable for operating voltages exceeding  66 kV  because 

  • ASkin effect dominates on the conductor.
  • BThere is a danger of breakdown of insulation because of formation of voids in the layers of dielectric.
  • CThere is a corona loss between conductor and sheath material.
  • DInsulation may melt due to heating. 
Correct Answer : (B)

There is a danger of breakdown of insulation because of formation of voids in the layers of dielectric.

Hints :

Solid type cables are not considered suitable for operating voltages exceeding  66 kV  because there is a danger of breakdown of insulation because of formation of voids in the layers of dielectric.

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