this post was submitted on 28 Nov 2025

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World Map of Mains Voltages and Frequencies (lemmy.ca)

submitted 2 days ago* (last edited 2 days ago) by otter@lemmy.ca to c/dataisbeautiful@mander.xyz

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Details: https://en.wikipedia.org/wiki/Mains_electricity_by_country

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[–] BastingChemina@slrpnk.net 3 points 1 day ago

I think it's because in a three phase system is you have 220v between two phases then you'll have 127v between one phase and the ground.

I know in France at one point before the 50s most of the country was using 110v, then some of it switched to 127v but from the 50s they decided to unify the national electrical grid to 220v. It took a while but now I don't think there is any 110v left.