Why don't we burry power lines underground ?

5 Answers

Answer :

Ground is also referred to earth, it is zero vote. When a live touches the ground it trips because earth is an infinite load as such there is an infinity, current causing a trip out, also causes an imbalance unto other phases now setting of CT when an imbalance is sensed, trip out signal is sent Through the zero vote route... 

Secondly its danger to humans.

Answer :

The main reason why under grounding hasn’t been fully adopted is the overwhelmingly high cost of installing underground power lines. Estimates place the cost of under grounding power lines at roughly $750 per foot, compared with $70 per foot to install power lines the way we do today. At over ten times the cost, this would become expensive very quickly

Answer :

there are two reason:

1) cost of installation and maintenance

2) transmission losses due to Transmission line capacitance

Hide or report this

Answer :

1. Costlier

2. Insulation problem

3. Maintenance issue

4. Line capacitance ie over voltage issue

Answer :

Because conductor used for power transmission are not insulated and if we do so it create phase to ground fault causing interruptions to supply.

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