Advantages of Aluminum Busbar

1. Lightweight and easy to install
The density of aluminum is only 2.7g/cm ³, which is about one-third of that of copper. Under the same conductivity, the weight of aluminum busbar is much lower than that of copper busbar. This feature significantly reduces transportation and installation costs, especially suitable for load sensitive scenarios such as high-rise buildings and large-span overhead lines, while reducing the load on supporting structures.

2. Significant cost advantage
Aluminum has abundant crustal reserves, and the cost of mining and smelting is much lower than that of copper, with raw material prices only 1/4 to 1/3 of copper. For large-scale power projects such as substations and new energy power stations, the use of aluminum busbars can significantly reduce overall construction costs and provide higher cost-effectiveness.

3. Good conductivity
Although the conductivity of aluminum (about 377 S/m) is lower than that of copper (580 S/m), by weight, the conductivity efficiency (conductivity/density) of aluminum is more than twice that of copper. Under the same weight, the current carrying capacity of aluminum busbar can reach over 80% of that of copper busbar, fully meeting the conductivity requirements in the medium and low voltage fields.

4. Excellent corrosion resistance
Aluminum surface is prone to form a dense oxide film (Al ₂ O3), which can effectively prevent further oxidation of the internal metal, especially in dry or neutral environments, with better corrosion resistance than copper. For outdoor or humid environments, the service life of aluminum busbars can be further extended after anodizing, coating, and other treatments.

5. Good processing performance
Aluminum has high ductility and is easy to roll and extrude into various cross-sections (such as rectangular, groove shaped, and tube shaped). Complex shaped busbars can be customized according to needs. At the same time, the welding and bending process of aluminum is simple, making it easy to process and connect on site, and improving construction efficiency.

6. Thermal stability and overload capacity
The melting point of aluminum is 660 ℃, which is lower than copper (1083 ℃), but it has good thermal stability at normal operating temperature (≤ 90 ℃). Its thermal expansion coefficient is close to that of copper, and with appropriate expansion joint design, it can adapt to deformation caused by temperature changes, ensuring long-term operational reliability.

7. Environmental Protection and Sustainability
The recycling rate of aluminum is over 95%, and the energy consumption of recycled aluminum is only 5% of that of primary aluminum, which is in line with the trend of green and low-carbon. Under the "dual carbon" goal, the recycling advantage of aluminum busbar makes it the preferred material for environmentally friendly engineering.