I think that the most common DC plug is a USB one. As you said, we pull the plug. I never saw an arc, not even in the dark, but they could be very tiny or the involved Vs and As are too small.
USB A single space modules for the Euro standard wall plugs are in stock at every shop. USB C are less common. The point is that all of them are 5 V and about 1 or 2 A, some about 3A. Furthermore they are still AC to DC converters inside the wall instead that outside of it. There is not a single central converter in the house.
USB A single space modules for the Euro standard wall plugs are in stock at every shop. USB C are less common. The point is that all of them are 5 V and about 1 or 2 A, some about 3A. Furthermore they are still AC to DC converters inside the wall instead that outside of it. There is not a single central converter in the house.
See some examples of those modules at https://www.amazon.it/bticino-living-usb/s?k=bticino+living+...