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What Are The Holes In Electrical Plug Prongs For?
The US uses two standard electrical plug types: Plug Type A and Plug Type B. Both have two parallel pins for power, while the latter has an additional grounding pin for safety ... Standards ...
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People are just learning what the holes in electrical plugs prongs are for
Ever been curious about the purpose of those tiny holes in electrical prongs? Some savvy tech heads have finally shed light ...