The invention concerns an electrical wiring frame for housing electrical appliances and the wiring thereof, comprising a quick, simple assembly system not requiring tools thereby considerably reducing assembly costs and time. Said frame (1) comprises at least two vertical members (2) and at least a horizontal rail (4) linked to the two vertical members by at least two generally omega-shaped stirrups (3), the stirrup base determining the spacing of the horizontal rail relative to the vertical members, the internal space defined by said stirrups being used as wiring duct, the horizontal rail (4) being provided with a standardised support (5) designed for housing electrical appliances and at least one binding post (6) arranged parallel to the support designed for fixing in position the electric wires connected to the electrical appliances. Said frame is characterised in that the mounting of the stirrups (3) on the vertical members (2), of the horizontal rail (4) on the stirrups (3), of the support (5) and of the binding post (6) on the horizontal rail (4) is a demountable jointing and locking assembly, the elements to be mutually assembled comprising respectively matching jointing and locking means arranged to co-operate mutually. The invention is applicable to electrical wiring.