Swa sizing

[Coleman]

Hi can anyone help
Im running about 35m of swa cable from the house to the garage as the ac back to the inverter the array is a 4kw whats the quickest way of finding out what cable size i need?
many thanks

 

[mickys86]

Have a look in the on site guide.
Work out ya volt drop and away you go

 

[Earthstore]

Remember it needs to be less than 1% for PV, especially if your supply voltage is on the high side, or the inverter will need to go over voltage to match the mains.

I hope this helps.

 

[steve Leese]

look at sunny design it does the calcs for you