S sparky308 Junior Member Joined Jul 14, 2008 Messages 31 Reaction score 11 Today at 8:12 PM #21 2.5 cable from the OP's consumer unit. Where does 40m come from? Anyway the volt drop for 40m of 2.5 drawing 10 amps is 7.2 volts or 3.1%. So I can't see a problem here. Last edited: Today at 8:29 PM
2.5 cable from the OP's consumer unit. Where does 40m come from? Anyway the volt drop for 40m of 2.5 drawing 10 amps is 7.2 volts or 3.1%. So I can't see a problem here.
