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 wallywombat over 4 years ago

Nano Brewery:
The H07RN-F I'm looking at has rigid conductors:
https://www.superlecdirect.com/cables-and-accessories-c1/h07rnf-flex-mains-and-control-cables-en6033212-s185/

The page you link to seems to contain only H07RN-F, and the -F in the harmonised designation indicates "fine wire flexible cable" - so I'm not sure how they can have rigid conductors.
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0 wallywombat over 4 years ago

Nano Brewery:
The H07RN-F I'm looking at has rigid conductors:
https://www.superlecdirect.com/cables-and-accessories-c1/h07rnf-flex-mains-and-control-cables-en6033212-s185/

The page you link to seems to contain only H07RN-F, and the -F in the harmonised designation indicates "fine wire flexible cable" - so I'm not sure how they can have rigid conductors.
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Radial Voltage Drop Calculation?... By Load or MCB Rating?

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