Aluminium Conductor Steel Reinforced (ACSR)

 Aluminium Conductor Steel Reinforced (ACSR) is a type of overhead power transmission conductor used in electrical power distribution. It is a composite conductor consisting of a central steel core surrounded by one or more layers of aluminum strands. The steel core provides mechanical strength and stability to the conductor, while the aluminum strands offer low resistance and good conductivity.


ACSR conductors are widely used in overhead power lines due to their excellent strength-to-weight ratio and conductivity. The steel core provides high tensile strength, allowing the conductor to withstand the mechanical stresses caused by its own weight and environmental factors such as wind and ice loads. The aluminum strands provide the electrical conductivity necessary for efficient power transmission.

The design of ACSR conductors allows for a combination of the strength of steel and the conductivity of aluminum, resulting in a lightweight yet robust conductor. This combination makes ACSR conductors suitable for long-distance power transmission lines, where high mechanical strength and low resistance are required.

The performance of ACSR conductors is measured in terms of their electrical and mechanical properties, such as ampacity (current-carrying capacity), tensile strength, and sag characteristics. These properties are determined by the size and configuration of the steel core and aluminum strands.

ACSR conductors come in various sizes and configurations to meet different power transmission requirements. Common configurations include ACSR Moose, ACSR Dog, ACSR Drake, ACSR Bison, and many more, with each design offering specific electrical and mechanical characteristics.

Overall, ACSR is a widely used and reliable conductor in the power transmission industry, providing a balance of strength, conductivity, and cost-effectiveness for overhead power lines.


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