Ключевые слова: bar, bus, cable, circuit, clamp, connect, connected, connection, connector, construction, contact, control, copper, current, danger, earth, electric, electrical, electrician, electricity, electronic, energy, engineering, equipment, ground, grounding, industrial, industry, installation, lightning, line, machine, metal, plug, power, protection, rod, safety, shock, steel, supply, system, technology, terminal, volt, voltage, welding, wire, yellow,