| 摘要 |
electrical engineering. SUBSTANCE: device has torch, which is made from transparent material and is filled with at least sodium vapor and noble gas. Electrodes are sealed in torch. Lamp parameters conform to condition 6,32 B.A >= (Ul/lie)d.i >= 1,64 B.A, where Ul is lamp voltage (V), lie is inter-electrode gap (mm), d is inner torch diameter (mm), i is nominal lamp current (A). EFFECT: increased output efficiency. 1 dwg
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