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?
Why are domestic 'lighting' circuits normally 16A cable (1mm² T&E) yet have a 6A MCB?
Not to mention the fashion now for using 1.5mm² 20A T&E.
Worst case might be a fully loaded lighting circuit protected by a 6A MCB and supplied using 1.0mm^2 cable will often be covered entirely with thermal insulation.
Most likely situation might be a loaded circuit to 2/3rd protective device rating.
The chances of any overloading in a domestic environment is minimal. Although you might have start-up current problems with 20 or 30 LED lamps firing up together, or LED lamps blowing to a short as opposed to an open circuit.
Why are domestic 'lighting' circuits normally 16A cable (1mm² T&E) yet have a 6A MCB?
Not to mention the fashion now for using 1.5mm² 20A T&E.
Worst case might be a fully loaded lighting circuit protected by a 6A MCB and supplied using 1.0mm^2 cable will often be covered entirely with thermal insulation.
Most likely situation might be a loaded circuit to 2/3rd protective device rating.
The chances of any overloading in a domestic environment is minimal. Although you might have start-up current problems with 20 or 30 LED lamps firing up together, or LED lamps blowing to a short as opposed to an open circuit.
