I am wiring 7 110v 16a industrial type sockets on a 50metres radial circuit for portable equipment protected by at the very most a 20a breaker fed from a 110v distribution board which in turn is fed from a double wound transformer centre tapped earth fault voltage no more than 55v.It is to be wired in swa xple cable but due to the absence of 110v tables in the IEE regs how do i work out sizing and volt drop i was going to use 2.5mm cable would this be ok?
