|The interference from external disturbance like a storm, lightning ice, trees, etc is more.
||DThe interference from external disturbance like a storm, lighting, ice, trees is minimum
|The overhead cables are less costly as compared with the underground cable.
||The underground is more costly as compared with the overhead system for the same voltage.
|The right of way requirement is more in the case of underground cable.
||The right of the way requirement is less the case of underground cable.
|The possibilities of supply interruption due to lighting and other external influence are more than with overhead cable.
||The possibility of supply interruption due to lighting and other external influences cable.
|The location of the fault in overhead line in easily found.
||In the case of underground cable, the fault occurs due to any reasons is not easily located.
|For long –distance transmission over headline cable can be used.
||For the long-distance transmission cable cannot be used due to their long charging current.