Ключевые слова: ac, accessory, adapter, background, black, cable, charger, circuit, compact, component, connection, connector, cord, current, danger, dc, device, distribution, electric, electrical, electricity, electronic, energy, engineering, equipment, high, industrial, industry, isolated, line, metal, network, object, plastic, plug, portable, power, repair, steel, substation, supply, technology, terminal, transformer, universal, volt, voltage, watt, white, wire,