ACSR steel core aluminum twisted cable

Model

Steel-cored Aluminum Stranded Wire (ACSR)

Number of Cores

Single-core

Structure Description

Steel-cored Aluminum Stranded Wire (ACSR) is composed of two parts:

●Steel core: The center is made of high-strength steel wire, which provides mechanical strength, supports the conductor, and withstands tension.

●Aluminum strands: The outer layer consists of multiple aluminum wires stranded together, responsible for electrical conduction. The aluminum wires are stranded around the steel core in layers, typically 1 to 3 layers.

Application Range

1. Transmission Lines

High-voltage transmission: Used in high-voltage and extra-high-voltage transmission lines, especially for long distances and large spans.

Overhead lines: Commonly used in overhead transmission lines due to its high mechanical strength, capable of withstanding external forces such as wind and ice.

2. Substations

Busbars: Used as busbars in substations to transmit large currents.

3. Electrified Railways

Overhead contact systems: Used for the overhead contact systems in electrified railways to supply power.

4. Distribution Networks

Medium and low-voltage distribution: Suitable for medium and low-voltage distribution lines where higher mechanical strength is required.

5. Special Environments

Coastal areas: ACSR treated with corrosion protection is suitable for high-corrosion environments.

Mountainous and river-crossing areas: Suitable for complex terrain and large-span areas.

6. Temporary Power Supply

Emergency power: Used for temporary or emergency power supply lines, easy to set up and dismantle quickly.

7. Other Applications

Communication lines: Sometimes used as support conductors in communication lines.

Wind power generation: Used for transmission lines in wind farms.

Introduction Steel-cored Aluminum Stranded Wire (ACSR) is a conductor composed of a high-strength steel core and an outer layer of aluminum strands, combining high mechanical strength with excellent electrical conductivity, widely used in high-voltage transmission and overhead lines.

Advantages

●High strength: The steel core provides high tensile strength, suitable for large spans and high-tension environments.

●Good electrical conductivity: The outer aluminum strands have good electrical conductivity, suitable for power transmission.

●Lightweight: The low density of aluminum makes the overall weight lighter, facilitating transportation and installation.

●Cost-effective: Combining the advantages of steel and aluminum, it offers high cost-effectiveness.

●Corrosion resistance: It can be treated with corrosion protection to extend its service life and is suitable for harsh environments.

●Flexibility: The stranded structure provides a certain degree of flexibility, making it easy to install.

●Wide application: Suitable for various applications such as high-voltage transmission, overhead lines, and substations.

Specifications

Common models include JL/G1A, JL/G1B, JL/G2A, JL/G2B, JL/G3A, etc., with a general range of 16 to 1250 mm².

Cost and Materials

1. Material Costs

Aluminum strands: As the main conductive material, aluminum strands account for a significant portion of the cost. The price of aluminum is highly influenced by international market fluctuations.

Steel core: The steel core provides mechanical strength. It is usually made of high-strength steel wire, with relatively lower costs but crucial for overall performance.

2. Production Costs

Stranding process: The aluminum strands and steel core are processed into conductors through a stranding process, involving equipment, labor, and energy consumption.

Corrosion protection: Some ACSR requires corrosion protection to extend its service life, adding to the cost.

Why Choose Zhongyi Cable for Your Aluminum Core Cable Needs

Experience in manufacturing aluminum core cable with proven quality

Standard compliance & certifications: GBT, CE, etc.

Competitive pricing + weight optimization + flexible cross sections

Customization: different insulation / sheath materials / armour / weather resistance

Technical support & test reports available

Please visit our website for more information.