Patent DE-3475589-D1 (DE)
Title: Power supply system
Inventor: HAWLAN HANS
IPC: H02H3/00
Filed: 1984-03-16
Granted: 1989-01-12
Abstract: 1. A structure for the poWer supply of buildings, residences, offices, apartments, shops or the like, the power supply lines being passed from a connection or central (7) having overcurrent of fault current circuit breakers to individual power outlets (9) such as sockets, light or wall outlets or the like which are at least partially controllable or switchable by power switching points (10), for instance light or lighting fixture switches, each power switching point (10) being provided with one each signalling circuit (11) and the controllable or switchable power outlets (9) having one each signal receiving circuit (13), at least one, preferably two or more, control line(s) (1, 2) for weak current signals connecting the power switching points (10) at least with the controllable or switchable power outlets (9), the control lines (1, 2) serving for the transmission of coded switch signals from the power switching points (10) to the power outlets (9) for the actuation of power switching means (15), for instance relays, thyristors, triacs, in the power outlets (9) and the power supply lines (R, S, T, 0) being laid together with the control line(s) (1,2) in the form of an optionally not closed ring circuit and stub lines emanating therefrom, characterized in that the ring circuit and the stub lines are formed of flat lines (30) of optionally trapezoidal cross section and comprising the power supply lines (R, S, T), a zero conductor (0), a ground wire (E) and the control lines (1, 2), that the individual portions of the flat line (30) are connected to one another by connecting and/or branching elements (5, 8, 35, 36) containing conductors extending the power and control lines, that the flat lines (30) are connectable to the terminals of wall boxes (27) adapted to the flat lines and having continuous conductor tracks (32) of preferably determined position for the power and control lines, that modules insertable or pluggable into the wall boxes (27) are provided, the modules being formed as power outlets (9) with the signal receiving circuit (13) and/or as power switching point (10) with the signalling circuit (11) and having contact means (31, 151, 166) for picking up power and control signals connectable in the course of insertion of the module with the conductor tracks (32) for power or control signals continuing in the wall blox (32), that, in particular in the case of a reduction of the cross section of the power conductors, the controllable or switchable power outlets (9) and the power outlets (9') with free power supply in the stub line leading to the power outlet (9) in the wall box (27) each have an electronic overcurrent monitoring circuit (16) and that a cut-off signal appearing at the respective outlet of the monitoring circuit in the event of a current flow exceeding a predetermined value is feedable to a control circuit (14) of the power switching means (15) and/or via the control line(s) (1, 2) of the flat line (30) to the central (7) for actuating the fault current and/or overcurrent circuit breakers provided in the central.