Spannungsversorgungsvorrichtung

摘要

A socket (22) to which the appliance (36) is connected by a plug (38) is plugged into the voltage supply. The socket has a detector (45,46,48) detecting the presence of a plug in the socket. A A power-supply appliance (16) which is positioned apart from the socket is connected by a signal line (18) and by a power supply line (20) to the socket. The power supply unit switches on the voltage to the socket when the detectors indicate the fact that the two contact pins (53,54) of the plug are inserted into the socket.