Ключевые слова:
Internal combustion engines, Reciprocating engines, Safety measures, Design, Explosive atmospheres, Fire risks, Flammable atmospheres, Fire-damp, Dust, Combustion, Underground, Compression-ignition engines, Equipment safety, Hazards, Designations, Temperature, Engine components, Air intakes, Engine exhaust systems, Starters, Stopping, Cut-out devices, Engine fuel systems, Electrical equipment, Electrostatics, Control devices, Verification, Type testing, Test specimens, Test equipment, Pressure testing, Mechanical testing, Inspection, Marking, Failure (mechanical)