Let's start at the meter panel. Here in Austria the meter is usually inside the appartment, in one box with the fuses/breakers.
Before I actually saw that appartment I thought of one or maybe 2 6 or 10A circuits. When i opened the door of the fuse box I found 4 16 A fuses staring at me (phases and neutrals for 2 circuits, nothing unusual here.) However, all wiring was rated for max. 10A. Normally it's impossible to screw in greater fuses, but some ingenious guy had removed the screws at the bottom of the element that should prevent that. One of the hallway switches (an old toggle) works only after several slaps on the cover, some switches only stay in the box because the 4-5 layers of wallpaper keep them in place,...
bare copper wires in the plaster,... I have no idea why that never burnt down.
