Electrical installation equipment, including anti-vandalism plugs and switches, for use in premises at risk or without monitoring inside or outside (except remote control devices for motorisation of blinds), component pieces and parts of the above products including mechanisms, flush-mounting boxes, housing assemblies, mounting frames, surface-mounting frames, adapters, adapter frames, plates, backing plates, counter plates, facia plates, trim plates, drill plates, coverings, caps, lids, lid hinges, cover plates, label holders, actuator members