Solid type cables are considered unreliable beyond 66 kV because
A. Insulation may melt due to higher temperature
B. Skin effect dominates on the conductor
C. Of corona loss between conductor and sheath material
D. There is a danger of breakdown of insulation due to the presence of voids
Answer: Option D
This Question Belongs to Electrical Engineering >> Electrical Cables
The bedding on a cable consists of
A. Hessian cloth
B. Jute
C. Any of the above
D. None of the above
The insulating material for a cable should have
A. Low cost
B. High dielectric strength
C. High mechanical strength
D. All of the above
Underground cables are laid at sufficient depth
A. To minimize temperature stresses
B. To avoid being unearthed easily due to removal of soil
C. To minimize the effect of shocks and vibrations due to gassing vehicles, etc.
D. For all of the above reasons
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