Aluminum -core cables and aluminum alloy cables are widely used in the fields of power transmission and connection, but they have significant differences in multiple aspects. The following is a detailed discussion of the difference between the two:
Material composition
Aluminum core cable: It is mainly composed of pure aluminum materials, and is a combination of pure aluminum core wires and insulating materials and sheet materials. Pure aluminum is widely used due to its relatively low cost.
Aluminum alloy cable: The ingredients containing aluminum alloy are usually mixed with aluminum with other alloy elements such as silicon, magnesium, copper, iron, etc. This alloy treatment not only improves the electrical and intensity of the material, but also gives more excellent performance of the cable.
Performance characteristics
Conductivity
Aluminum core cable: Compared with copper, aluminum conductive performance is poor and the resistance is large. Therefore, in some occasions with higher conductive performance, aluminum core cables with larger surfaces may be needed.
Aluminum alloy cable: Aluminum alloy has better conductive performance compared to pure aluminum, because alloyization processing can improve the conductivity of the material to a certain extent. This makes aluminum alloy cable advantages on some occasions with lower resistance.
Mechanical performance
Aluminum core cable: relatively soft, good bending performance, but low tensile strength. Therefore, it applies to some scenes that need to bend, but may perform poorly on occasions that require high mechanical performance such as tensile and distortions.
Aluminum alloy cable: Due to the large strength of aluminum alloy, it has better mechanical performance. Its tensile strength and extension rate are better than pure aluminum cables, so it is suitable for some occasions with higher mechanical performance.
Oxidation
Aluminum core cable: The surface of pure aluminum is easy to form oxidation layer, which protects the internal gold to a certain extent and is not further oxidized. However, this oxidation layer may also lead to a decline in electrical performance.
Aluminum alloy cable: Although aluminum alloy also has a certain oxidation resistance, its oxidation resistance may be slightly worse than pure aluminum. This is mainly because other elements in the alloy may react with the oxygen in the air and accelerate the oxidation process. However, by adding chemical elements such as rare earth, it can further improve the corrosion resistance of aluminum alloy.
Cost
Aluminum core cable: Due to the use of pure aluminum materials, the cost is relatively low. This makes aluminum core cable the first choice in some economic projects.
Aluminum alloy cable: Due to the more complicated processing process of the alloy ingredients, the cost is relatively high, but in some areas with high performance requirements, such as high -demanded power systems and equipment, aluminum alloy cables have stronger competitiveness Essence
Scope
Aluminum core cable: power distribution systems, construction electrical engineering, industrial fields, and small and medium -sized power transmission lines that are commonly used in urban power networks. It is excellent in specific application scenarios with its characteristics such as light quality, low cost, and good thermal conductivity.
Aluminum alloy cable: Due to its superior conductive conductivity, mechanical performance and corrosion resistance, aluminum alloy cables are widely used in many fields such as the power industry, construction industry, transportation, and electronic industry. Especially in some occasions with higher performance requirements, such as large span buildings, power transmission in harsh environments, etc., aluminum alloy cables are indispensable.
In summary, there are significant differences in material composition, performance characteristics, and application range of aluminum -core cables and aluminum alloy cables. When selecting cables, various factors should be comprehensively considered according to specific application requirements and engineering requirements to ensure that the most suitable cable type should be selected.
Post time: Oct-17-2024
