13 A plugs, socket-outlets, adaptors and connection units. Specification for 13 A fused connection units switched and unswitched|Rated current, Leakage paths, Earthing, Flexible conductors, Damp-air tests, Wear tests, Testing conditions, Fire tests, Dielectric-strength tests, Electrical safety, Fuses, Socket adaptors, Thermal resistance, Plug adaptors, Electric terminals, Electric pins, Impact testing, Environment (working), Electrical testing, Marking, Type testing, Thermal testing, Clearance distances, Electric connectors, Endurance testing, Temperature rise, Corrosion tests, Heating tests, Heat ageing tests, Performance testing, Classification systems