Copper vs aluminium bus bar

Why use aluminum bus bar instead of copper bus bar?
 
 
In the production process of bus ducts, the most important raw material is the conductor. Copper vs aluminium bus bar the selection of the conductor material directly affects the price of the busbar; the performance of the conductor is directly related to the performance index of the busbar. Whether a qualified busway product can meet user requirements and whether it can play its role in power transmission and distribution, the choice of internal conductor is particularly important. The conductor used is high-quality T2 electrolytic copper, and its electrical properties are much better than ordinary brass copper.
 
Comparison of copper and aluminium bus bar metal materials: the density of copper is 8.9g/cm3, the density of aluminum is 2.7g/cm3; the conductivity of copper is second only to that of silver, and the IACS value is 100% (international standard annealing electrolytic copper standard value), high purity The IACS values ​​of aluminum (99.996%) and industrial pure aluminum (99.5%) are 64.94% and 59%, that is, the conductivity of copper is about 35%-40% higher than that of aluminium bus bar; copper bus bar has better chemical stability in the atmosphere, and aluminum More active, but adding trace alloying elements can improve its chemical stability; copper has better strength and hardness, pure aluminum is slightly worse, but aluminum alloy can obtain higher strength and hardness after heat treatment, because of its light weight, its strength is far greater copper.
 
Naturally, copper resources are relatively limited, coupled with the increase in the cost of the smelting industry in recent years, and the sharp rise in copper prices, which keeps the cost of copper materials high, which will inevitably have a greater impact on manufacturers' market expansion. The aluminium bus bar resources are relatively abundant, the smelting technology is mature, and the price is low.
 
Signi aluminium bus ducts made of aluminum bus bar conductors have been widely used in some developed countries abroad, and their manufacturing technology and processes have become mature. In recent years, some domestic aluminium busbar manufacturers have also begun to manufacture high-quality aluminum conductor busbars, and have been affirmed and praised by users and design units in practical engineering applications, demonstrating its unique advantages.
 
Due to the similar cross-sectional shapes of copper conductors and aluminum conductors, aluminium bus way manufacturers can design and manufacture aluminum conductor busway without major changes to the busway product structure. The focus is on improving the production process (such as improving the surface of the conductor). Treatment process to enhance and protect the surface quality of aluminum conductor plating) and add related tooling equipment. Therefore, the technical and economical comparative advantages of aluminum conductor busway and copper conductor busway are the key points for its extensive application.