Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 502
nt C,after having passed through all theintermediate phases characterized with-in the region B C. This phenomenonis noticeable at the moment of lightingup, when the lamp is cold and theinternal pressure is low. The voltsabsorbed by the burner are then alsolow, and, since the series resistance… … Showing Distribution of Light from Quartz Tube Mercury Vapour Lamp. Fig. 6 shows how the current andpressure vary as a function of thetime at the terminals of a 110-voltburner, the series resistance of whichis adjusted for operation on 80 volts4 amps. The pressure at which a burnernormally works…
Lighting
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