| Overhead Cable | Underground Cable |
|---|---|
| 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. |