Ключевые слова: ac, backup, black, button, cable, circuit, closeup, connect, connection, consumption, control, cord, danger, electric, electrical, electricity, electronic, energy, extension, fire, guardian, hardware, indicator, isolated, lots, many, multi, multiple, office, outlet, overload, overloaded, plug, power, powerful, protect, protection, protector, safe, safety, saving, socket, strip, supply, surge, technology, volt, voltage, white, wire,