Overhead Aluminium Conductors
Aluminium conductors have achieved wide acceptance all over the world for use in overhead transmission and distribution lines. Generally a steel core is used with the aluminium to give the conductor mechanical strength. This arrangement is termed Aluminium Conductor Steel Reinforced or ACSR. Conductors comprised entirely of aluminium are known as All Aluminium Conductors or AAC.These conductors are extensively used for busbars in outdoor substations where spans are short. All Aluminium Alloy Conductors or AAAC consist of an alloying of aluminium to give a tensile strength in excess of that of AAC, allowing longer spans. These conductors are recommended for coastal areas where severe corrosion is a problem.