Ключевые слова:
Fire safety|Enclosures|Acid-resistance tests|Occupational safety|Fasteners|Flexible conductors|Impact testing|Battery-powered devices|Headwear|Flammable atmospheres|Electric contacts|Fire tests|Electrical safety|Fire-damp|Lamps|Ignitability|Mining equipment|Electrical equipment|Diameter|Miners lamps|Explosive atmospheres|Dimensions|Safety measures|Mechanical testing|Cap lamps|Protected electrical equipment|Drop tests|Marking|Design|Fire risks|Electric cells