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A comment on Why does the USA use 110V and UK use 230-240V?. Parent comment

Re:Why does the USA use 110V and UK use 230-240V? by Ekaros on Wednesday August 30, 2023 @06:40AM (#37319968)
It is more efficient. Going from 4 wires to 5 is not a big deal if you then can have triple power. Or you can use thinner wires thus less material overall.

The split phase is two lives, neutral and ground. 3-phase is 3 lives, neutral and ground.

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