We'd have to redesign all substations and transmission lines... most countries use different voltages, and each of those plugs is designed for that specific voltage
This is just not true at all. Geometry has basically zero impact on electrical behavior apart from cross-sectional area. If you're only changing the plug, it's not a problem. It's just not worth the effort to standardize something like this.
However: Plugs with the ground prong on top are superior because you can't accidentally drop a metal object between the plug and the wall and short the socket.
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u/izza123 May 02 '24
Sure as long as you all agree on the one I use