Wiring sockets, switches

Anyone can oversize cables as they like. One should only distinguish between fun, sense, and regulations. Although, actually you don’t have to, because there are specialists for that.

And even these specialists disagree, as I have come to see... I just had a conversation with the owner of the electrical company who approved the last construction for me. He has no problem laying 1.5mm² cables even in drywall constructions with wooden studs and protecting them with 16A. Others are against that... It's borderline for these specialists... Well, as it looks, we will be getting a new company for the construction anyway, but it will still take a few days. But the walls have to be closed... See you :)