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What is the difference between aluminum alloy cable and aluminum core cable?


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.

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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 them. For example, aluminum alloy cables are widely used in life. When choosing, people will have certain entanglements with aluminum core cables. Next, Zhengzhou Jinshui Cable Group will introduce to you what aluminum alloy cable is. What is the difference between aluminum alloy cable and aluminum core cable?

 

What is aluminum alloy cable?

Aluminum alloy cable is a new type of material power cable invented and created by using AA8030 series aluminum alloy material as the conductor and adopting advanced technologies such as special compaction process and annealing treatment.

 

Advantages of aluminum alloy cables:

 

1. Extension performance of aluminum alloy cables
Elongation is an important indicator of the mechanical properties of a conductor and an important indicator of the quality of the product and the amount of external force it can withstand. It is also an important indicator for testing the mechanical properties of cable conductors. The elongation of aluminum alloy cable after annealing can reach 30%, while the elongation of copper cable is 25%, and the elongation of ordinary aluminum rod is 15%, which is an important indicator that can replace aluminum core cable and copper cable.

 

2. Flexibility of aluminum alloy cables
Torsion test: mainly tests the toughness of metal wires. The better the toughness, the more twists it can withstand. An important disadvantage of ordinary aluminum wire is its high brittleness. As long as it is twisted several times at a certain angle during installation, the conductor will crack, and the crack will generate heat and corrosion, which is an important cause of fire. Using aluminum alloy cables, due to its good toughness, will not cause cracks and reduces safety hazards during installation.

 

3. Bending performance of aluminum alloy cables
Bending test: mainly tests the bending resistance of metal. Materials with uneven texture or brittle properties have poor bending resistance.
According to the provisions of GB/T12706 on the bending radius of copper cables during installation, the bending radius of copper cables is 10-20 times the cable diameter, and the minimum bending radius of aluminum alloy cables is 7 times the cable diameter. Using aluminum alloy cables can reduce the layout space , easier to lay and reduce installation costs.

 

4. Rebound performance of aluminum alloy cables
Practice has proven that when copper cables and aluminum alloy cables are bent 90 degrees at room temperature, after the stress is released, the rebound angle of the aluminum alloy cable is 60% of that of the copper cable. Because the aluminum alloy cable has no memory, the rebound performance is better than that of the copper core cable. During the installation process, the terminal connection joint is easy to be pressed, which increases its tightness and improves the stability of the connection.

 

The difference between aluminum core cable and aluminum alloy cable:

 

一、Different production materials

Aluminum core cable is an aluminum core cable 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.

 

二、Different performance


1.Mechanical properties

(1) Tensile strength and elongation
Compared with pure aluminum conductors, the tensile strength of aluminum alloy conductors is greatly improved. Due to the addition of special components and special processing technology, the elongation rate is increased to 30%, making it safer and more reliable to use.

(2)Bending characteristics

The bending performance of the aluminum core cable is very poor and it is easy to break. The bending radius of the aluminum alloy cable is 7 times the outer diameter of the cable, which is much better than 10~20 times the outer diameter of the cable specified in GB/T 12706.

(3) Flexible

Only a few twists of the pure aluminum cable will cause the conductor to crack or break, which will easily cause accidents. The aluminum alloy power cable can withstand dozens of times of bending, which eliminates the hidden danger of accidents when installing and using pure aluminum cables in the past, and greatly improves Cable stability and reliability.

2. Electrical conductivity

ALl Aluminum alloy conductor is a new type of conductor material formed by adding rare earth, magnesium, copper, iron and other elements to pure aluminum. It is well known that when other alloying elements are added to aluminum, the conductivity will decrease, but through process control, the conductivity can be restored to a level close to that of pure aluminum, making it have a similar current to pure aluminum.

 

3. Different weights

When aluminum core cables and aluminum alloys increase the cross-section to replace copper core cables, the weight is about half that of copper core cables, and installation is very convenient.

 

4. Different fees

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


The above content is an introduction to aluminum alloy cables and aluminum core cables. I hope that you will have a deeper understanding and research on the details of these two cables in the process of practical application. The selection criteria for cables should also take into account the various production processes and the quality testing of the cables. Choose the most suitable cable product after judging many factors.