Ключевые слова: background, board, box, breaker, cabinet, cable, circuit, conduit, construction, control, copy, current, danger, device, electric, electrical, electricity, energy, engineer, equipment, fuse, gear, generator, high, hvac, industrial, industry, lever, line, machine, maintenance, metal, panel, plant, power, professional, safety, service, space, supplies, supply, switch, switchgear, system, technical, technology, utility, voltage, wire, work,