Ключевые слова: alert, area, attention, background, beware, black, caution, circuit, current, danger, dangerous, electric, electrical, electrician, electricity, electrifying, electrocute, electrocuted, electrocution, energy, fence, hazard, hazardous, high, high voltage, icon, industrial, industry, lightning, nobody, notice, power, reflection, risk, safety, security, shock, sign, signal, substation, symbol, tension, triangle, voltage, volts, warn, warning, white, yellow, zone,