Voltage drop question

[Sintra]

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.

Why mess about trying to make up formulae when you have been given the correct ones in post #2

 

[yarcyk]

So "4" is there because you calculate VD on one leg (length/2) and as one leg has half of the load ( Ib/2) ?

 

[yarcyk]

Thanks for your time guys.

 

[Sintra]

So "4" is there because you calculate VD on one leg (length/2) and as one leg has half of the load ( Ib/2) ?

You are starting to see the light

 

[telectrix]

light on a ring?

 

[Sintra]

light on a ring?

Yes did you not read the thread last night or the night before? You just need to know where to put the FCU and or the switch. :lol:

 

[telectrix]

did read it. switch goes after the CU and before the light. if it's a ring circuit, however, you need to fit 2 switches. 1 in each leg. :stupid: