A system for managing electric devices, including a first panel having at least one hole and having a first conductive surface, a second panel integral and substantially parallel to the first panel and having a second conductive surface. The first panel is overlapped to the second panel. The system is configured in such a way that the second conductive surface has at least one portion not covered by the first panel and accessible through the, or each, hole. The first conductive surface and the second conductive surface are connected to an electric circuit in such a way that the first conductive surface has a first predetermined polarity, and the second conductive surface has a second predetermined polarity, opposite to the first predetermined polarity.