ACSR is widely used in overhead power transmission and distribution lines. Steel-cored aluminum stranded wire is formed by twisting aluminum wire and steel wire, and is suitable for overhead transmission lines. It is a steel "core" inside, and an aluminum wire is wrapped around the steel core by twisting on the outside; the steel core mainly plays the role of increasing the strength, and the aluminum stranded wire mainly plays the role of transmitting electric energySteel core aluminum stranded wire has the characteristics of simple structure, convenient erection and maintenance, low line cost, large transmission capacity, and is conducive to the laying of special geographical conditions such as crossing rivers and valleys. It has good electrical conductivity and sufficient mechanical strength. Tensile strength It has the characteristics of high strength, and the distance between towers can be enlarged, so this product is widely used in overhead transmission and distribution lines of various voltage levels.Operating temperature: the maximum long-term operating temperature of the cable conductor is 90°C Short-circuit temperature: the maximum temperature of the cable conductor does not exceed 250 ℃ during short-circuit (the longest duration does not exceed 5s) Laying temperature: the ambient temperature when laying the cable should not be lower than 0 ℃ Bending radius: the bending radius of single-core cable is not less than 15 times the outer diameter of the cable, and the bending radius of multi-core cable is not less than 10 times the outer diameter of the cable Scope of application: It can be laid indoors, in tunnels, cable trenches and pipes, and can also be buried in loose soil. The cable can withstand certain laying traction, but cannot withstand mechanical external force.