Which is better, steel power line or flying crane line?

Steel-cored aluminum stranded wire and Hefei-Hefei wire are both commonly used wires in power lines, each with its own advantages and disadvantages. The specific material used depends on the situation of the line. Generally speaking, the conductor of steel-core aluminum stranded wire (also known as steel-core aluminum wire) is composed of steel core and aluminum stranded wire, which has the characteristics of high strength, long span and good wind and earthquake resistance. It is suitable for overhead transmission lines across bridges, rivers and other areas, but the price is relatively high. Hefei line is an aluminum alloy power cable, which has the advantages of light weight, good conductivity and convenient installation. Suitable for medium and small span overhead transmission lines, power stations, distribution lines in substations, etc. And its price is relatively low.