OP
matthunt
Volt Drop = 18mv/a/m x 32amps ib x 50 mts length /1000 / 4 = 7.2 volts or Volt Drop = 18mv/a/m x 16amps ib x 25 mts length /1000 = 7.2 volts, take your pick.
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Sort of. As I can't get values for 5mm cable but work out estimated it's about right. Take voltage drop as 8.5 and Ib 30amps it is roughly 90m.
So "4" is there because you calculate VD on one leg (length/2) and as one leg has half of the load ( Ib/2) ?
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