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LED lighting cable calcs

Baldyhugh
Hi all


when calculating cable size for an LED lighting circuit is there a multiplication factor to be applied like the 1.8 for the old fluorescent lighting? I’m aware of the high inrush currents of led fittings but what I understand of this it is of such short duration that it only affects the curve rating of the mcb selection. I have a couple of 150 disco Lowbays to fit in a warehouse and would appreciate some advice.


many thanks
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    It is unlikely that these LEDs will have a high inrush current, and as they are only 150W it won't be much anyway. Fit a 6A type B and see what happens. Electronic PF correction limits the input current anyway, its not like charging a big capacitor via a bridge rectifier, although at such low power even that would not be a large current for long.  Design ELFI for a type C just in case.
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    It is unlikely that these LEDs will have a high inrush current, and as they are only 150W it won't be much anyway. Fit a 6A type B and see what happens. Electronic PF correction limits the input current anyway, its not like charging a big capacitor via a bridge rectifier, although at such low power even that would not be a large current for long.  Design ELFI for a type C just in case.
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