Light system with dielectric barrier discharge lamp, operating device and connection cable
View Patent ↗A lighting system with a dielectric barrier discharge lamp ( 2 ) and an operating device ( 1 ) is connected to a high-voltage flat ribbon cable ( 6 ). As a result, the capacitive line losses can be minimized and both the ignition behavior and the power consumption of the lamp ( 2 ) can be improved.
1. A lighting system having a dielectric barrier discharge lamp, an electrical operating device, having two high-voltage terminals, an electrical connection cable, which comprises two high-voltage wires, which connect electrodes of the dielectric barrier discharge lamp to the high-voltage terminals of the electrical operating device, wherein the connection cable is a high-voltage flat ribbon cable in which the high-voltage wires have a distance from one another which is larger than is required for dielectric strength such that the capacitance of the high-voltage flat ribbon cable is approximately equal to or less than the capacitance of the unignited dielectric barrier discharge lamp.
2. The lighting system as claimed in claim 1 , the high-voltage flat ribbon cable being designed such that an electrical capacitance value between the two high-voltage wires is as low as possible.
3. The lighting system as claimed in claim 2 , the high-voltage wires having a distance from one another which is larger than is required for the dielectric strength.
4. The lighting system as claimed in claim 1 , the wires being spaced apart from one another by spacers.
5. The lighting system as claimed in claim 4 , the spacers being in the form of insulating webs.
6. The lighting system as claimed in claim 1 , the wires being in the form of braided wires.
7. The lighting system as claimed in claim 1 , the number of wires of the high-voltage flat ribbon cable being at least three, and the two outer wires being the two high-voltage wires.
8. The lighting system as claimed in claim 7 , the at least one further wire, which is arranged between the two high-voltage wires, being connected to ground potential.
9. The lighting system as claimed in claim 1 , the high-voltage flat ribbon cable being composed of in each case one individual cable per wire, and the individual cables being arranged in a plane parallel next to one another to form a common flat ribbon cable composite.
10. The lighting system as claimed in claim 9 , two or more individual cables being arranged between the two individual cables with the high-voltage wires.
11. The lighting system as claimed in claim 10 , the individual cables arranged next to one another being sheathed by a common sheathing.
12. The lighting system as claimed in claim 9 , the individual cables arranged next to one another being sheathed by a common sheathing.
13. The lighting system as claimed in claim 1 , the high-voltage flat ribbon cable being designed for high voltages of several kilovolts, in particular of from 2 kV to 10 kV.
14. The lighting system as claimed in claim 1 , the operating device being designed for pulsed operation of the dielectric barrier discharge lamp.
15. The lighting system as claimed in claim 14 , the operating device being designed for pulse repetition frequencies of from 50 to 200 kHz.