| 摘要 |
The invention pertains to the area of the electric illumination and may be used in the equipment of the combined illumination of premises. Its aim is to increase the range of the power of the luminescent bulb of the local illumination, improve its operational quality and safety as well as achieve the economy on the electric power in general. The essence of the invention is that, in given equipment which contains two incandescent lamps connected in a series of various capacity which are connected to the three-phase four-wire electricity supply network without one phase and the discontinuous null wire and one luminescent bulb with the electrodes heated up by the run-up starter which is connected without the ballast throttle to the voltage of the midpoint conductor offset caused by such connection. Instead of the incandescent bulb of a lower power the equipment offered uses the capacitor of a relevant power with the permissible voltage of its exploitation which is larger by the number of times than the phase voltage which allows to increase the voltage of the midpoint conductor offset to the level which is necessary to run and exploit any high-capacity luminescent lamp. The increased voltage of the midpoint conductor offset now allows running the luminescent bulb with the cold glower, that is, without the starter heating up the glowers thus simplifying the circuitry of the equipment and increasing the operational reliability. |
