Aluminum overhead wire

 

Aluminum overhead wire is a conductor used in power transmission and distribution systems. It is made of aluminum or aluminum alloy and has excellent conductivity, light weight and corrosion resistance. According to different uses, aluminum overhead wires can be divided into categories such as all-aluminum conductor (AAC), all-aluminum alloy conductor (AAAC) and aluminum conductor steel reinforced (ACSR).

 

1. Characteristics of aluminum overhead wires

 

1. Good conductivity* High-purity aluminum or aluminum alloy materials are used to ensure efficient power transmission.

 

2. Light weight: Compared with copper conductors, aluminum conductors have lower density, which reduces the load-bearing requirements of overhead lines.

 

3. Strong corrosion resistance: The oxide film on the surface of aluminum and its alloys provides good corrosion resistance and is suitable for various climatic conditions.

 

4. Moderate strength: AAAC and ACSR are reinforced with alloy or steel core to improve mechanical strength and tensile properties.

 

5. High economy: Aluminum is cheaper than copper and is suitable for large-scale transmission line construction.

 

2. Specifications

 

Aluminum overhead wires comply with a number of international and national standards, including but not limited to:

 

- ASTM B231

 

- TS IEC 1089

 

- DIN 48201

 

- BS 215

 

- UNE 21.018

 

3. Processing Technology

 

The manufacturing of aluminum overhead wires mainly includes the following processes:

 

1. Drawing: drawing aluminum or aluminum alloy materials into single wires of the required diameter.

 

2. Twisting: twisting multiple aluminum wires or aluminum alloy wires into a complete conductor to improve its conductivity and mechanical properties.

 

4. Application Areas

 

Aluminum overhead wires are widely used in various transmission and distribution systems, including:

 

- High-voltage transmission lines: suitable for long-distance power transmission.

 

- *Urban and rural distribution networks: provide stable power supply.

 

- Railway and subway power supply systems: used for power distribution in rail transportation.

 

- Wind and solar power plants: used for power transmission in renewable energy systems.

 

5. Why choose Chalco?

 

Choosing high-quality aluminum overhead lines is crucial for the safety and stability of the power transmission and distribution system. Chalco products have the following advantages:

- Made of high-quality aluminum alloy (1350, 6101, 6201, 6061, 8006, 8030, 8176) to ensure the best balance of conductivity and strength.

- Compliance with international standards to ensure reliable product quality.

- Advanced manufacturing process to improve the mechanical properties and durability of the conductor.

- Complete after-sales support, providing customized solutions and technical services.

 

6. FAQ

 

1. What is the difference between AAC, AAAC and ACSR?

- AAC (all-aluminum conductor): mainly used for short-distance power transmission, with good conductivity.

- AAC (all-aluminum alloy conductor): has higher strength and corrosion resistance than AAC.

- ACSR (aluminum conductor steel reinforcement): adding steel core to the aluminum conductor to improve tensile strength, suitable for long-distance high-voltage transmission lines.

 

2. How long is the service life of aluminum overhead lines?

Depending on the use environment and maintenance, it can usually reach more than 30 years.

 

3. Can aluminum overhead lines be used in severe weather conditions?

Yes, aluminum overhead lines have good corrosion resistance and mechanical strength and can be used in harsh environments such as high humidity and marine climate.

 

4. How to choose the appropriate aluminum overhead line specifications

It needs to be selected based on factors such as transmission distance, current load, and environmental conditions. It is recommended to consult a professional engineer.