Inkie@beehaw.orgtoTechnology@lemmy.ml•Why do North American electrical plugs have holes on them?
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2 years agoAlec (the person who runs this channel) has a habit of rambling on about all sorts of semi-related historical facts and other such nonsense.
I understand if that is not to your taste. I quite like it.
TL;DW: Specification says that the holes are optional, but they are often used to facilitate the manufacture of the plug blades. It defines a position and size for the holes so that they will be out of the way of the actual part of the plug that makes contact