Pertains to plugs, socket-outlets, vehicle connectors, vehicle inlets and cable assemblies for electric vehicles, herein referred to as 'accessories', intended for use in conductive charging systems which incorporate control means, with a rated operating voltage not exceeding: - 690 V a.c. 50 Hz to 60 Hz, at a rated current not exceeding 250 A, - 1500 V d.c. at a rated current not exceeding 400 A.