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<blockquote data-quote="PowerSeed" data-source="post: 299607" data-attributes="member: 1364">svaka hps/mh lampa ima svoje vreme zagrevanja&quot;HPS Starting And Warm-UpHere are the steps a High Pressure Sodium lamp takes in the process of starting and reaching full light output:<ol>
<li data-xf-list-type="ol">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. 
&nbsp; &nbsp;</li>
<li data-xf-list-type="ol">Now, the initial arc takes place through the xenon starting gas and produces a small amount of blue-white light. 
&nbsp; &nbsp;</li>
<li data-xf-list-type="ol">Then the heat from the xenon arc causes the sodium and mercury in the arc tube to vaporize rapidly. 
&nbsp; &nbsp;</li>
<li data-xf-list-type="ol">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.</li>
</ol>With most HPS lamps, this four-step process takes four to six minutes.&quot;</blockquote>

[QUOTE="PowerSeed, post: 299607, member: 1364"] 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: [LIST=1][*]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. [/LIST] [B]With most HPS lamps, this four-step process takes four to six minutes.[/B]" [/QUOTE]

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