Re: Another unusual plug and some other questions
I believe they were designed to go with special switched sockets that only allowed a plug to be inserted or withdrawn with the switch off (perhaps for DC use?) A restrictor plate clamped the earth pin while the switch was on, and also prevented the insertion of a plug in that state (but in case anyone tried, the live pins were partly sleeved so the portion sticking out of the socket would be safe).
__________________
If I have seen further than others, it is because I was standing on a pile of failed experiments.
|