Ключевые слова: aged, alert, arrow, attention, caution, danger, dangerous, dangerous to life, death, dirty, electric, electrical, electricity, electroshock, emblem, energy, hazard, hazardous, high, high voltage, icon, industrial, industry, inform, lightning, messy, old, power, prohibition, retro, risk, rough, safety, shock, sign of the electric voltage, signal, symbol, technical, transformer, transformer station, triangle, vintage, volt, voltage, wall, wallpaper, warning, warning sign, yellow, zone,