Hiya Forum. I have recently moved to a new place (New South Wales, Australia), and found outside a "Clipsal weatherproof IP53" AC socket. Please check the pictures.
The socket has the expected flat sockets for Active and Neutral. What has me puzzled is the round socket for the Earth pin, where I would have normally expected a vertical flat pin.
The socket runs regular 2-pronged appliances fine but a 3-pronged (earthed) plug won't fit into it, due to the Earth socket being this round hole.
I have not attempted to open up the socket, or to test the Earth connection.
Any guess as to what this socket is, or why it may not have been installed as a regular 3-flat-pronged socket?
So far, I can't seem to find anywhwere on the internet a reference to this style of socket