This Rules applies to plugs and socket-outlets, cable couplers and appliance couplers intended primarily for industrial use, for indoor or outdoor use, with a rated working voltage not exceeding 1000V d.c. or a.c. and 500Hz a.c. and a rated current not exceeding 800A. This Rules applies to electrical accessories with a rated current not exceeding 32A in series I and a rated current not exceeding 30A in series II, and with screwless terminals or insulation piercing terminals. Socket-outlets or appliance inlets installed in or fixed to electrical equipment are covered by this Rules. This Rules also applies to electrical accessories intended for use in extra-low voltage installations. This Rules does not apply to electrical accessories that are primarily intended for home use or similar general purposes.
