Ключевые слова: aeration, architecture, background, box, building, cable, conduit, connect, connector, construction, design, electrical, engineering, environment, equipment, factory, galvanized, horizontal, industry, installation, interior, junction, lamp, light, line, metal, metallic, network, new, panel, pattern, pipe, pipeline, power, protection, rod, safety, site, steel, supply, support, system, technology, transfer, tube, ventilation, voltage, white, wire, work,