ACSR (Aluminum Conductor Steel Reinforced) is one of the most widely used overhead bare conductors for electric power transmission and distribution networks. It consists of one or more layers of hard-drawn aluminum wires stranded around a high-strength galvanized steel core. The steel core provides excellent tensile strength, while the aluminum strands ensure superior electrical conductivity and lightweight performance.

ACSR conductors are designed for long-span transmission lines, high-voltage power systems, and utility networks where high mechanical strength and excellent current-carrying capacity are required. They are suitable for installation across rivers, valleys, mountainous regions, and other challenging terrains.

Manufactured in accordance with international standards such as IEC 61089, ASTM B232, BS 215, DIN 48204, and CSA C49, our ACSR conductors deliver reliable performance, long service life, and cost-effective power transmission solutions.

• High Tensile Strength

• Excellent Electrical Conductivity

• Lightweight Construction

• Long Span Capability

• Superior Sag Performance

• Corrosion Resistant

• High Mechanical Durability

• Low Maintenance

• Cost-Effective Solution

• Easy Installation

• Long Service Life

• Suitable for High Voltage Transmission

• Excellent Weather Resistance

• Reliable Performance in Harsh Environments

Aluminum Strands

The outer layers consist of hard-drawn aluminum wires that provide excellent electrical conductivity and lightweight performance.

Steel Core

The center core consists of one or multiple galvanized steel wires designed to provide high tensile strength and minimize conductor sag.

Stranding Structure

The aluminum wires are concentrically stranded around the galvanized steel core to achieve an optimal balance between electrical conductivity and mechanical strength.

Construction Diagram

Outer Layer

Hard Drawn Aluminum Wires

↓

Center Core

Galvanized Steel Wire(s)

↓

Finished Product

Aluminum Conductor Steel Reinforced (ACSR)

Technical Specifications

Available Conductor Sizes

Typical sizes include:

• 16 mm²

• 25 mm²

• 35 mm²

• 50 mm²

• 70 mm²

• 95 mm²

• 120 mm²

• 150 mm²

• 185 mm²

• 240 mm²

• 300 mm²

• 400 mm²

• 500 mm²

• 630 mm²

• 800 mm²

• 1000 mm²

Custom sizes are available upon request.

Advantages

High Mechanical Strength

The galvanized steel core provides outstanding tensile strength, allowing installation over long spans with reduced sag.

Excellent Conductivity

High-purity aluminum strands ensure efficient electrical transmission with low energy loss.

Lightweight Design

Compared with all-steel conductors, ACSR offers an excellent strength-to-weight ratio, simplifying transportation and installation.

Long Span Performance

Ideal for river crossings, mountain transmission lines, and other long-distance overhead applications.

Corrosion Resistance

Galvanized steel and high-quality aluminum provide excellent resistance to atmospheric corrosion.

Cost-Effective

Combines the electrical efficiency of aluminum with the mechanical strength of steel at an economical cost.

Applications

ACSR conductors are widely used in:

• High Voltage Transmission Lines

• Medium Voltage Distribution Networks

• Utility Power Grids

• Rural Electrification Projects

• Substation Connections

• Overhead Distribution Systems

• Long Distance Transmission Lines

• River Crossing Projects

• Mountain Power Transmission

• Industrial Power Networks

• Renewable Energy Projects

• Wind Farm Grid Connections

• Hydroelectric Power Stations

• Solar Power Plants

• National Power Infrastructure

Mechanical Properties

• High Tensile Strength

• Excellent Fatigue Resistance

• Low Sag Under Heavy Loads

• Strong Wind Resistance

• Ice Load Resistance

• Good Vibration Performance

• Excellent Structural Stability

Electrical Performance

• High Current Carrying Capacity

• Low Electrical Resistance

• Stable Power Transmission

• Low Power Loss

• Excellent Thermal Stability

• Reliable Long-Term Performance

Quality Control

Every ACSR conductor undergoes comprehensive testing before shipment.

Testing includes:

• Conductor Resistance Test

• Tensile Strength Test

• Zinc Coating Test

• Wire Diameter Inspection

• Lay Length Inspection

• Breaking Load Test

• Weight Measurement

• Surface Inspection

• DC Resistance Test

• Final Factory Inspection

Packaging

Available packaging options include:

• Steel-Wooden Drum

• Wooden Drum

• Steel Drum

• Export Standard Drum

• Customized Drum Length

• Customer-Specified Packaging

Standard delivery lengths can be customized according to project requirements.

Custom Manufacturing

We provide OEM and customized manufacturing services.

Customization options include:

• Cross-sectional area

• Steel core strength

• Number of aluminum strands

• Conductor construction

• Drum length

• Packaging

• Customer marking

• International standard compliance

• Project-specific requirements

• Professional overhead conductor manufacturer

• Advanced stranding production lines

• High-purity EC-grade aluminum

• Premium galvanized steel wire

• Strict quality management system

• Compliance with international standards

• Competitive factory pricing

• Fast delivery

• OEM & ODM support

• Extensive global export experience

What is an ACSR conductor?

An ACSR (Aluminum Conductor Steel Reinforced) conductor is a bare overhead conductor made of aluminum strands surrounding a galvanized steel core. It combines excellent electrical conductivity with high mechanical strength.

Why use a steel core?

The steel core significantly increases the conductor's tensile strength, allowing longer spans, reduced sag, and improved performance under wind and ice loading.

Where are ACSR conductors used?

They are commonly used in overhead transmission and distribution lines, utility grids, substations, renewable energy projects, and long-span installations.

What standards do your ACSR conductors comply with?

Our products can be manufactured according to IEC 61089, ASTM B232, BS 215, DIN 48204, CSA C49, and other customer-specified standards.

Can you manufacture customized ACSR conductors?

Yes. We offer customized conductor constructions, cross-sectional areas, steel core strengths, drum lengths, packaging, and OEM branding to meet specific project requirements.

Contact Us

Looking for a reliable ACSR (Aluminum Conductor Steel Reinforced) manufacturer?

We supply high-quality ACSR conductors for overhead transmission and distribution projects worldwide. Our experienced engineering team provides customized solutions, technical support, competitive pricing, and fast delivery. Contact us today to request a quotation, product catalog, or free sample.