Descriptors | Type d protected electrical equipment, Protected electrical equipment, Electric enclosures, Explosive atmospheres, Electrical safety, Joints, Spigot-and-socket joints, Flanged fittings, Roughness (surface), Holes, Dimensions, Screwed fittings, Adhesive-bonded joints, Labyrinth seals, Grades (quality), Dimensional tolerances, Seals, Bearings, Type testing, Bushes (mechanical components), Pressure testing, Fire tests, Explosions, Thermal testing, Leak tests, Flammability, Testing conditions, Mechanical testing, Electrical insulation |