ACSR bare overhead transmission conductor consists of a solid or stranded steel core surrounded by strands of aluminium (E.C.GRADE).
Widely used in power transmission lines with various voltage levels, because they have such good characteristics as simple structure, convenient installation and maintenance, low cost large transmission capacity. And power lines are also suitable for laying across rivers valleys and the places where special geographical features exist.
ACSR(Aluminum Conductor Steel Reinforced) has a long service record because of its economy ,dependability, and strength to weight ratio. The combined light weight and high conductivity of aluminum with strength of the steel cores enable higher tensions ,less sag,and longer spans than any alternative.