High voltage transmission lines deliver electricity over long distances. The high voltage is required to reduce the amount of energy lost during the distance. Unlike other energy sources such as natural gas, electricity can’t be stored when it is not used. If demand exceeds supply, a blackout occurs. A comprehensive national grid with many redundancies has been built to mitigate these circumstances, and overhead high voltage electrical lines can frequently be encountered by farmer, construction workers, and local residents.
Because overhead transmission lines are not covered by insulation, there are many safety considerations when working and playing nearby. Electricity ’wants’ to reach the ground. An object on the ground can still become electrified without touching an overhead wire because electricity can arc through air. Because of that, one should keep good distance between themselves, construction and farming equipment, and overhead power lines.