Ключевые слова: ac, alternating, background, cable, capacitor, circuit, control, core, danger, dangerous, distribution, dry, efficiency, electric, electrical, electrician, electricity, energy, engineering, equipment, green, high, highvoltage, indoor, industrial, industry, isolated, kva, line, low, power, resin, safety, sign, sky, small, station, steel, structure, substation, supply, symbol, technology, transformator, transformer, transmission, voltage, watt, white, wire,