Ключевые слова: background, bend, black, blackout, cable, clipart, closeup, computer, connect, connection, connector, copy, copyspace, cord, current, device, efficient, electric, electrical, electricity, energy, europe, european, grid, home, industry, insert, isolated, line, mains, network, object, outlet, plastic, plug, power, red, save, simple, socket, space, supply, technology, unplug, unplugged, volt, voltage, white, wire,