hello dudes happy christmas!
If a feed a second consumer unit from the main one with some 10mm T&E on a 45A mcb will I need to run a 16mm main earth across to it or will the cpc in the T&E be sufficient?
If a feed a second consumer unit from the main one with some 10mm T&E on a 45A mcb will I need to run a 16mm main earth across to it or will the cpc in the T&E be sufficient?