What are the differences between aluminum alloy cables and aluminum core cables

With the wide application of social economy and electricity, while bringing convenience to our life, it also brings life-threatening, so the use of wires and cables has become particularly important. However, there are so many types of wires and cables in the society that people don’t know how to choose, especially when choosing cables, they can’t tell the difference between aluminum core cables and aluminum alloy cables. Therefore, I would like to introduce to you the difference between aluminum core cables and aluminum alloy cables.

The difference between aluminum core cable and aluminum alloy cable:

The aluminum core cable is made of aluminum material, usually represented by “L”. Aluminum alloy cable is a new type of material power cable invented and manufactured by using AA-8030 series aluminum alloy material as the conductor, using special pressing technology and annealing treatment and other advanced technologies.

1.Corrosion resistance

The corrosion resistance of pure aluminum conductors is better than that of copper conductors, but the corrosion resistance of aluminum alloy conductors is better than that of pure aluminum conductors. Because the addition of rare earth and other chemical elements to the aluminum alloy can improve the corrosion resistance of the aluminum alloy, especially the corrosion resistance of the aluminum alloy, which solves the long-term electrochemical corrosion problem of pure aluminum at the joint.

2.Mechanical properties

a.Tensile strength and elongation

Compared with pure aluminum conductors, aluminum alloy conductors have greatly improved tensile strength and elongation to 30% due to the addition of special components and special processing techniques, making them safer and more reliable to use.

b.Bending properties

The bending performance of the aluminum core cable is poor, and it is easy to break when it is bent. The bending radius of the aluminum alloy power cable is 7 times the outer diameter of the cable, which is far better than the 10-20 times the outer diameter of the cable stipulated by the industry.

c.Flexibility

As long as the pure aluminum cable is twisted at a certain angle several times, the conductor will crack or break, which is easy to cause accidents, and the aluminum alloy power cable can withstand dozens of times of bending, eliminating the need for pure aluminum cables during installation and use in the past. It is prone to hidden dangers of accidents, which greatly improves the safety and reliability performance.

3.Conductivity

Conductor is an important part of power cable and the main carrier of electric energy transmission. In order to reduce the energy loss and voltage drop in the cable conductor, the conductor of the power cable is generally made of copper, aluminum or aluminum alloy with high conductivity. Aluminum alloy conductor is a new type of conductor material formed by adding rare earth, magnesium, copper, iron and other chemical elements to pure aluminum through alloying process. As we all know, after adding various other alloying elements to pure aluminum, its conductivity will decrease, and through process control in the production process, the conductivity of the conductor can be restored to a level close to that of pure aluminum, making it comparable to pure aluminum. similar carrying capacity.

4.Processing performance

The mechanical properties of aluminum are poor. When the wire is twisted, if the compression coefficient is high, the conductor will have burrs, broken wires, or even broken. Compared with pure aluminum conductors, aluminum alloy conductors have some special components added. At the same time, special production technology and production equipment are adopted, and the mechanical properties have been greatly improved. Even if the force is repeated, it will not easily produce cracks.

5.different weight

When the aluminum core cable and aluminum alloy increase the section to replace the copper core cable, the weight is about half of the copper core cable, and the installation is very convenient.

6.different fees

The cost of aluminum core cable is about 1/5 of that of copper cable, about 1/3 of that of aluminum alloy cable, and the cost is lower.

The above is the difference between aluminum core cable and aluminum alloy cable, I hope everyone can understand and pay attention. In practical applications, the selection of aluminum core or aluminum alloy core cables still needs detailed research and evaluation. Its selection criteria will not only need to consider the traditional elements such as the initial cost, electrical performance and mechanical performance of the cable, but also include various elements throughout the production, use, maintenance, post-processing, recycling and final disposal of the cable, especially to analyze Environmental factors and potential environmental impacts in the product life cycle, including resource utilization efficiency, human health impacts and possible ecological consequences. From this, the most suitable cable product can be judged comprehensively.