Ключевые слова: alternative, attention, background, caution, charging, danger, dangerous, ecology, electric, electrical, electricity, energy, environment, environmentally, factory, fence, generate, hazard, high, icon, incident, industrial, industry, infrastructure, lightning, line, manufacture, metal, nature, old, power, production, renewable, repair, risk, safety, security, service, shock, sign, sky, station, substation, symbol, technology, triangle, volt, voltage, warning, yellow,