Thin stamped construction is cheap, but can still be fitted with sleeving on the live (active and neutral) pins like UK & europlug, but not US plugs. This prevents objects or fingers getting to live pins on a partially inserted plug.
Industry has agreed that leads exit either straight out, or down-and-right, so there is no conflict for horizontal or vertical sockets. Sockets are universally installed earth-down.
Also:
Thin stamped construction is cheap, but can still be fitted with sleeving on the live (active and neutral) pins like UK & europlug, but not US plugs. This prevents objects or fingers getting to live pins on a partially inserted plug.
Industry has agreed that leads exit either straight out, or down-and-right, so there is no conflict for horizontal or vertical sockets. Sockets are universally installed earth-down.
Reasonably compact.