svaka hps/mh lampa ima svoje vreme zagrevanja
"HPS Starting And Warm-Up
Here are the steps a High Pressure Sodium lamp takes in the process of starting and reaching full light output:
"HPS Starting And Warm-Up
Here are the steps a High Pressure Sodium lamp takes in the process of starting and reaching full light output:
- When the power is turned on to an HPS lamp connected to the proper ballast, a narrow high voltage pulse is applied to the lamp, initiating an electrical discharge between the electrodes. As soon as a path of ionized molecules exists, current is supplied by the ballast to initiate a continuing arc in the lamp. If necessary, the starting pulse repeats during each cycle until the arc is established, at which time the pulse automatically ceases.
- Now, the initial arc takes place through the xenon starting gas and produces a small amount of blue-white light.
- Then the heat from the xenon arc causes the sodium and mercury in the arc tube to vaporize rapidly.
- As the metals vaporize, the lamp assumes its warm golden white hue and both light output and lamp voltage increase to their stabilized operating values.