Ключевые слова: amper, automatic, automation, background, board, box, cable, circuit, closeup, communication, concepts, connected, connection, construction, consumption, control, counter, device, dial, digital, electric, electric meter, electrical, electrician, electricity, electronic, energy, equipment, industrial, metal, meter, modern, module, outdoor, panel, plant, power, protection, safety, security, supply, switch, system, technology, transformer, volt, voltage, voltmeter, watt,