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Advantages of aluminum alloy cables

3 days ago 1 0 News
  1. Conductive properties: The electrical conductivity of aluminum alloy is 61.5% of the most commonly used reference material copper IACS, and the current carrying capacity is 79% of copper, which is superior to the pure aluminum standard.

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    2. Creep resistance: The alloy material and annealing treatment of aluminum alloy conductors reduce the "creep" tendency of the conductor under heat and pressure. Compared with pure aluminum, the creep resistance is improved by 300%, avoiding cold flow. Or the problem of relaxation caused by creep.

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    3, tensile strength and elongation: aluminum alloy conductor compared to pure aluminum conductor, due to the addition of special components and the use of special processing technology, greatly improved the tensile strength, and the elongation increased to 30%, It is safer and more reliable to use.


    4. Thermal expansion coefficient: The thermal expansion coefficient is used to calculate the dimensional change of the material when the temperature changes. Aluminum alloys have a thermal expansion coefficient comparable to that of copper. Aluminum connectors have been used reliably for copper and aluminum conductors for many years, and most of the electrical connectors used today are made of aluminum, which is especially suitable for aluminum alloys. Therefore, the aluminum alloy conductor is completely identical to the expansion and contraction of the connector.

     

    5. Strong self-weight bearing capacity The aluminum alloy improves the tensile strength of pure aluminum. The aluminum alloy cable can support the self-weight of 4000 meters in length, and the copper cable can only support 2750 meters. This advantage is particularly evident when wiring large-span buildings such as stadiums.


    6. Anti-corrosion properties The inherent corrosion resistance of aluminum comes from the formation of a thin and strong oxide layer when the aluminum surface is in contact with air. This oxide layer is particularly resistant to various forms of corrosion. For example, in railway tunnels and other similar places, the corrosion resistance of aluminum alloys is much better than that of copper.


    7. Flexibility The aluminum alloy has good bending properties. Aluminum alloy is 30% more flexible than copper, and its rebound is 40% lower than copper.