While trying to understand the 2-way wiring for a landing light, I went through the MCBs on the CU to identify which lights were on which circuit.
Apart from obvious howlers, like metal switch plates not earthed on pattress boxes with 2 plastic sliding lugs, I am somewhat concerned that the wiring in the switches is quite thin (either 1.5mm² or even 1mm²) but the MCB is 16A.
What is the smallest wiring that can be used with a 16A MCB?
I tried to see the circuit wiring but the ceiling roses only have switched live, neutral and earth. The 2-way switches only have a single 3-way cable at both ends and nothing else. I cannot see any trace of the main circuit!
This is a 1930s chalet bungalow. Where are the junctions likely to be hidden?
Apart from obvious howlers, like metal switch plates not earthed on pattress boxes with 2 plastic sliding lugs, I am somewhat concerned that the wiring in the switches is quite thin (either 1.5mm² or even 1mm²) but the MCB is 16A.
What is the smallest wiring that can be used with a 16A MCB?
I tried to see the circuit wiring but the ceiling roses only have switched live, neutral and earth. The 2-way switches only have a single 3-way cable at both ends and nothing else. I cannot see any trace of the main circuit!
This is a 1930s chalet bungalow. Where are the junctions likely to be hidden?