Ключевые слова: 169, appliances, background, cable, connect, connection, connector, cord, current, device, disconnected, double, electric, electrical, electricity, energy, equipment, europe, extension, flow, green, grounded, hardware, house, industry, insert, inserting, interior, isolated, mounted, near, other, outlet, plate, plug, power, prong, simple, socket, supply, switch, technology, tools, two, voltage, volts, wall, white, wire,