ACSR (Aluminium Conductor Steel Reinforced) is a high-capacity, It consists of:
high-strength conductor widely used in overhead transmission and distribution lines.
The ACSR range from various local and international manufacturers, provides comprehensive solutions from small rural electrification conductors to ultra-high voltage transmission lines.
• Aluminium strands: Provide excellent conductivity.
• Galvanised steel core: Delivers mechanical strength to support
longer spans and withstand environmental factors like wind and ice.Primary Uses
01 High Voltage transmission lines up to 765 kV
02 Coastal or Corrosive Environments where corrosion-resistant greased cores are used
03 Applications requiring lightweight durability and strength
Technical Data
| Property | Value |
|---|---|
| Maximum Operating Temp | 75 °C (normal), 90 °C (emergency) |
| Maximum Short Circuit Temp | 200 °C |
| Coefficient of Expansion | 18 – 21 ×10⁻⁶ /°C |
| Modulus of Elasticity | 63,000 – 86,000 MPa |
| DC Resistance @20°C | 0.04 – 1.36 Ω/km (size dependent) |
| Tensile Strength (UTS) | 8 – 205 kN (size dependent) |
| Operating Voltage | Suitable for 132 kV to 765 kV systems. |
| Span Lengths | Vary based on conductor size and mechanical tension requirements. |
| Grease-Filled Cores | Recommended for coastal or corrosive environments to prevent galvanic corrosion. |
| Sag & Tension Calculations | Must consider temperature, span, and loading conditions for proper clearance and reliability. |
| • Current carrying capacity. | • Mechanical strength for span lengths. |
| • Environmental conditions (e.g., corrosion resistance). | • Compliance with IEC, BS, ASTM, and local standards. |
Key Features
Voltage Rating
132 kV – 765 kV.
Operating Temperature
75 °C (normal), 90 °C (emergency).
Size & Mechanical Properties
- Conductor size dependent,
- Coefficient of Expansion
18 – 21 ×10⁻⁶ /°C, - Tensile Strength 8 – 205 kN.
