In the UK, the National Grid distributes electricity from power stations to consumers.
The National Grid
Mains electricity is distributed to homes, shops, offices and factories by cables from power stations, which may be hundreds of kilometers away.
When electrical energy travels along a wir, some of it is dissipated. Increasing the voltage to 400kV reduces current, which reduces the amount of energy wasted.
High voltage is very dangerous. The electric shock caused by touching a high-voltage cable can kill.
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