Ключевые слова: box, cable, closeup, concepts, construction, container, control, danger, device, door, electric, electrical, electricity, energy, equipment, gas, glass, industrial, industry, installation, measurement, measuring, metal, meter, nobody, panel, pipe, pipeline, power, pressure, professional, protection, pump, revision, round, safety, services, shield, steel, switch, switchboard, system, technology, tool, valve, water, window, wire, wiring,