3 ms·
The european plugs (shuko and UK) were intended for use with 220-240V - the US was always 110V so it was thought that the lower supply wasn't really dangerous e
by excuse-me 14y ago
The european plugs (shuko and UK) were intended for use with 220-240V - the US was always 110V so it was thought that the lower supply wasn't really dangerous enough to need all the extra protection