| 摘要 |
The invention relates to an illumination installation, especially for use underground in mining, in which fluorescent tubes (13) are operated with a high-frequency voltage, the high-frequency being generated in the housing (12) of the light, and the supply voltage being generated in a rectifier power supply (2), and energy being transferred between the DC power supply and the housing (12) of the light via an intrinsically safe DC cable (8). <IMAGE>
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