Ключевые слова: auto, background, battery, cable, charging, color, colorful, connect, connection, contour, eco, ecology, electric, electrical, electricity, energy, environment, equipment, green, high, icon, illustration, industrial, industry, isolated, light, line, linear, outline, overhead, plant, plug, power, set, sign, socket, station, supply, symbol, technology, tower, transmission, vehicle, voltage, wire,