WIRING SCHEME FOR INCANDESCENT LAMPS OF A LIGHTING DEVICE

摘要

The invention relates to lighting engineering and can be used for illuminating public, industrial, house spaces and outdoor areas. Said invention simplifies a structural design and increases reliability and serviceability. The inventive lighting device has three operating modes: the lighting of all lamps at half of the filament voltage, the lighting of half of lamps at the total filament voltage and the lighting of all lamps at the total filament voltage. Said lighting device comprises the first and the second paralleled incandescent lamps or the group thereof connected to the first or the second wire of a power supply network. The point of the parallel contact of the incandescent lamps is connected to the first wire of the power supply network with the aid of a first contacting pair. A second contacting pair is connected between the first lamp and the first wire of the power supply network. A third contacting pair is connected between the first lamp and the second wire of the power supply network.