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

Nano Brewery
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
    Hi all.  Hope all's well!


    So, I'm looking to order the cable in the next week.  Was wondering if H07RN-F would also be suitable option?  I would classify the mechanical/environmental damage risk as very low as it's:


    All internal.

    Run around on tray.

    All wiring and sockets are mounted on perimeter walls no lower than 110cm.

    All equipment is static - Cask's/Keg's will be moved around, but only in centre of room/work area.


    The only slight concern to me is the Hot Liquor Tank and Kettle/Boiler Elements - These are fixed to the vessels at approx 30cm from the floor - Again, I would say low risk of mechanical damage, but should I be ticking some additional boxes here by using CY or SWA?  I personally feel that NYY or H07RN-F would be adequate.


    Look forward to your feedback/advice/help!


    Cheers!
Reply
  • 0
    Hi all.  Hope all's well!


    So, I'm looking to order the cable in the next week.  Was wondering if H07RN-F would also be suitable option?  I would classify the mechanical/environmental damage risk as very low as it's:


    All internal.

    Run around on tray.

    All wiring and sockets are mounted on perimeter walls no lower than 110cm.

    All equipment is static - Cask's/Keg's will be moved around, but only in centre of room/work area.


    The only slight concern to me is the Hot Liquor Tank and Kettle/Boiler Elements - These are fixed to the vessels at approx 30cm from the floor - Again, I would say low risk of mechanical damage, but should I be ticking some additional boxes here by using CY or SWA?  I personally feel that NYY or H07RN-F would be adequate.


    Look forward to your feedback/advice/help!


    Cheers!
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