Is there a standard or regulation applying to the geometry of recessed power sockets, or a regulation requiring them?
I just ask because I have a Chinese plug that works fine with Australian outlets, except a recessed-socket Arlec extension lead.
AS/NZS3112 gives the dimensions and some other requirements for recessed sockets and plugs to fit them, but I don't think it specifies under which circumstances recessed sockets are required.
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