why are there different shapes of electric plugs around the world why isn’t there a universal one
In: Engineering
Even in the US alone, you have many different plugs for different purposes. Different factors include:
Single, split, or 3 phase.
Presence or absence of a ground wire.
Current rating.
Voltage.
Locking vs non-locking.
So yeah, that’s how you get dozens of different kinds of plug, even in a single country.
Across the world, different countries developed their electric grids at different times, and came up with local standards that made sense for them. The standards are still different because if what you have works it’s difficult to justify tearing everything out and replacing it.
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