Aluminum Conductor Steel Reinforced (ACSR) is an overhead power transmission conductor consisting of a steel core and stranded aluminum wires. It is a type of power transmission material. The steel core provides mechanical strength, while the aluminum layer conducts electricity. The performance is optimized by combining the lightweight and high conductivity of aluminum with the tensile strength of steel. ACSR features simple structure, convenient installation and maintenance, low line cost, large transmission capacity, and suitability for laying across rivers and valleys in challenging geographical conditions. It also possesses good conductivity, sufficient mechanical strength, high tensile strength, and allows for increased tower spacing. Therefore, it is widely used in overhead power transmission and distribution lines of various voltage levels.
Galvanized steel strand
Aluminum stranded wire (AAC)
Table 11 Technical Requirements for Overhead Insulated Cables with Aluminum Cores and Aluminum Alloy Cores
