Aluminium Conductors Steel Reinforced (ACSR)

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ACSR conductors are widely used for electrical power transmission over long distances, since they are ideal for long overhead lines spans. They are also used as a messenger for supporting overhead electrical cables. Aluminum Conductor Steel Reinforced is used as bare overhead transmission cable and as primary and secondary distribution cable. ACSR conductor used as bare overhead transmission conductor and as primary and secondary distribution conductor and messenger support.

ACSR wire is suitable for use in all practical spans on wood poles, transmission towers, and other structures. Applications range from long, extra high voltage (EHV) transmission lines to sub-service spans at distribution or utilization voltages on private premises.
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 core enables higher tensions, less sag, and longer spans than any alternative.

Aluminium Conductors Steel Reinforced (ACSR) Construction

The steel strand or strands form the central core of the conductor, around which is stranded one
or more layers of aluminum 1350-H19 wires.
The steel core may consist of a single strand or a concentric-stranded cable of 7, 19, 37 or more
wires. The sizes and stranding listed on the following pages are those most frequently used for overhead lines.

Aluminium Conductors Steel Reinforced (ACSR) Characteristics

ACSR conductors are recognized for their record of economy, dependability and favorable strength/weight ratio. ACSR conductors combine the light weight and good conductivity of aluminum with the high tensile strength and ruggedness of steel.
In line design, this can provide higher tensions, less sag and longer span lengths than obtainable with most other types of overhead conductors.
The steel strands are added as mechanical reinforcement. The cross-sections above illustrate some common stranding