Ключевые слова: automatic, board, button, cabinet, cable, center, circuit, computer, construction, control, dc, device, digital, distribution, electric, electrical, electrician, electricity, electronic, energy, engineering, equipment, factory, industrial, industry, instrument, low voltage, machine, machinery, manufacturing, monitoring, network, panel, plant, power, production, relay, room, safety, substation, switch, switchboard, switchgear, system, technical, technology, volt, voltage, wire, wiring,