Ключевые слова: advice, alert, arrow, attention, background, cables, careful, caution, danger, dangerous, electric, electrical, electricity, emblem, energy, equipment, factory, hazard, high, icon, industrial, industry, inform, information, label, lines, manufacture, notice, plant, power, protect, protection, risk, safety, security, shock, sign, station, symbol, system, technology, transformer, triangle, voltage, voltmetro, warning, yellow,