Which of the
following is NOT a valid advantage of underground system of electrical
distribution as compared to overhead system?
Less maintenance
Decent appearance
Long life
Low cost
Low cost
Advantage of
underground power cable ;
●Safe
operation and long life.
●Prone to
environmental hazards.
●Less
maintenance cost.
●Less fault
occurrence and long life.
●Less voltage
drop and decent appearance.
Disadvantages
of underground power cable :
●High capital
cost
●Can-not use
for high voltage levels.
●Charging
current is more as compare to overhead transmission line.
Hence, the
correct option is (D).
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