WALL BUSHING

A wall bushing is provided for leading an electrical cable through a wall. The wall bushing includes a hollow body which extends at least for a portion along an axis of extension, the hollow body having a cavity in its interior and having an opening at each of two ends opposite each other in the direction of the axis of extension, forming an access to the cavity, and at least one cover which in a closure position of the wall bushing closes one of the openings at least partially and in a pass-through position frees up this opening at least partly. The wall bushing further includes at least one guide mechanism, which guides the cover relative to the hollow body and which comprises at least one locking element, by which the cover can be locked at least in the closure position. Also provided is a system for charging an at least partly electrically powered vehicle with a wall bushing, as well as a method for connecting a wallbox to an at least partly electrically powered vehicle.