My question is if you’ve got a lighting circuit and you ad addition loads to the circuit will this always trip the breaker if you add too much load on a circuit?
Realistically a circuit wired in 1.0mm with 6A CPD cannot be overloaded in a domestic install. If I add a 13A socket, it still cannot be overloaded. Moving on, if I have a larger CPD say 16A, and a 1.5mm cable I can overload (not the right term really) the cable if the installation method (insulation) is unfavourable. If I have a large cable feeding football floodlighting, then I probably cannot add sufficient extra load to make much difference unless it is a 125A BS4343. I suspect this question is a "homework" one to make the students think of scenarios, it certainly has done that!
Realistically a circuit wired in 1.0mm with 6A CPD cannot be overloaded in a domestic install. If I add a 13A socket, it still cannot be overloaded. Moving on, if I have a larger CPD say 16A, and a 1.5mm cable I can overload (not the right term really) the cable if the installation method (insulation) is unfavourable. If I have a large cable feeding football floodlighting, then I probably cannot add sufficient extra load to make much difference unless it is a 125A BS4343. I suspect this question is a "homework" one to make the students think of scenarios, it certainly has done that!
