In the connection of high-voltage wires, how does the aluminum terminal ensure the stable transmission of current?
Publish Time: 2025-02-17
In the connection of high-voltage wires, the aluminum terminal ensures the stable transmission of current through its unique design and material selection.1. Material selection and design featuresCopper-aluminum combination material: One end of the aluminum terminal is made of copper and the other end is made of aluminum. Copper has excellent electrical conductivity, while aluminum has a lighter weight and good corrosion resistance. This combination of materials not only takes advantage of the high conductivity of copper, but also takes advantage of the lightweight characteristics of aluminum, so that the terminal can maintain stable current transmission in the connection of high-voltage wires.Special surface treatment: In order to prevent the electrochemical corrosion problem caused by direct contact between copper and aluminum, aluminum terminals usually undergo special treatment on the contact surface, such as tin plating, nickel plating or other anti-corrosion materials. These treatments can effectively extend the service life of the terminal while ensuring the stable transmission of current.2. Connection method and processReliable connection method: Aluminum terminals are usually connected to conductors such as wires and cables by crimping, welding or bolting. These connection methods can provide reliable electrical connections, ensuring that the current will not generate excessive resistance or thermal effects due to poor contact during transmission.Strict process control: When manufacturing aluminum terminals, the production process needs to be strictly controlled to ensure that the structural strength, conductivity and corrosion resistance of the terminals meet the relevant standards. At the same time, during the installation process, strict installation steps and precautions need to be followed to ensure the correct connection and stable performance of the terminals.3. Mechanism of stable current transmissionLow resistance transmission: Aluminum terminals achieve low resistance connections between conductors such as wires and cables through their excellent conductivity and reliable connection methods. This low resistance connection can reduce the loss of current during transmission and ensure stable current transmission.Anti-creep and stress relaxation: Aluminum terminals need to consider mechanical properties such as anti-creep and stress relaxation during the connection process. Through reasonable design and process control, aluminum terminals can resist creep and stress relaxation caused by factors such as temperature changes and mechanical vibrations, thereby maintaining the stability and reliability of the connection.Good heat dissipation performance: In high-voltage wire connections, current transmission will generate a certain amount of heat. Aluminum terminal can effectively dissipate the generated heat through its good heat dissipation performance, preventing performance degradation or damage caused by overheating.In summary, aluminum terminal achieves stable current transmission in high-voltage wire connection through its unique material selection, connection method and process, and stable current transmission mechanism. These characteristics make aluminum terminal widely used and recognized in power systems.
