Radial Voltage Drop Calculation?... By Load or MCB Rating?

Nano Brewery over 4 years ago

I'm doing the calculation for total voltage drop. I have 14 radials/ways going out. As I understand it, that would equal a max allowance of 0.285% voltage drop per radial/way. Or some sort of mixture throughout not exceeding the 4% drop allowance overall. Firstly, is this correct?

Secondly, should I be doing my calculations based on actual Load or the MCB ratings of the individual radials/ways?

Thanks in advance!

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0 David Stone over 4 years ago

Also, Broadgage, LED lighting is not ohmic in response, so this too should not be a problem They are not a few LEDs in series with a resistor, even a simple light bulb has a full-on feedback stabilized switch mode power supply, so all bulbs at any reasonable voltage should be the same brightness. Dimmable ones are a bit different they modify the feedback by the mains peak voltage, to make them dim at all!
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0 David Stone over 4 years ago

Also, Broadgage, LED lighting is not ohmic in response, so this too should not be a problem They are not a few LEDs in series with a resistor, even a simple light bulb has a full-on feedback stabilized switch mode power supply, so all bulbs at any reasonable voltage should be the same brightness. Dimmable ones are a bit different they modify the feedback by the mains peak voltage, to make them dim at all!
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Radial Voltage Drop Calculation?... By Load or MCB Rating?

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