>Why? Do you have some type of high power industrial washing machines in homes? Perhaps, Belgians have very clean clothes or Belgium is very dirty?
In the practice the inspectors tolerate 2.5mm2
One explanation that I got is so that the earth is automaticaly also 4mm2. But this answer didn't satisfy me. A different explanation is that this is a outdated code from when people started using tumble dryers on the same sockets and therefore they "prescribed" 4mm2. On all new installations the practice is to have 2 sockets with 2 seperate 2.5mm2 cables.
>I take it that you use 230V cookers in Belgium? Are Belgian houses supplied with all three phases or just single-phase 230V?
The new instal. are single phase and therefore 6mm2. We do have also 3 phase installations and then it is allowed 4mm2 for stoves.
