Ключевые слова: appliance, building, cable, cement, center, closeup, communication, concrete, connection, control, current, danger, design, efficiency, electric plug, electrician, electricity, empty, energy, equipment, hole, house, indoors, industry, line, modern, new, outlet, panel, plastic, plug, power, power socket, power supply, press, reaching, risk, safety, security, shock, simplicity, single object, switch, technology, utility, volt, voltage, wall, white, wire,