Aluminium busbar for electrical application in industries are used as a lighter and effective way to distribute electrical power in large electrical equipment. Aluminium has a good electrical conductivity and has a low density compared to copper, which is suitable for applications where weight, material and large-scale power distribution is important.
Industrial aluminium busbars are frequently employed in switchgear, switchboards, electrical panels, busducts, transformers, motor control centers, power distribution systems, renewable-energy devices and industrial plants.
Aluminium is less conductive than copper but if the correct size aluminium busbar is used, it can achieve excellent electrical performance. When choosing aluminium, cross sectional area, connection design, temperature rise and installation conditions are all factors that must be taken into consideration.
What Are Aluminium Busbars
An aluminium busbar is a conductive bar manufactured from an aluminium alloy or electrical-grade aluminium and used to distribute electrical power within an electrical system. Unlike conventional cables, busbars generally have a flat or rectangular profile.
Common forms include:
The busbar may be supplied bare, plated, coated, or insulated depending on the application.
Why Are Aluminium Busbars Used in Industry
The main reason industries use aluminium busbars is the combination of low weight and good electrical conductivity.
Key advantages include:
| Feature | Aluminium Busbar | Copper Busbar |
|---|---|---|
| Electrical conductivity | Lower | Higher |
| Density | Much lower | Higher |
| Weight | Lower | Higher |
| Required cross-section | Generally larger | Generally smaller |
| Compactness | Moderate | Excellent |
| Large power distribution | Excellent | Excellent |
Benefits of Aluminium Busbar in Industrial Applications
Lightweight :
Aluminium’s low density can substantially reduce conductor weight.
Good Electrical Performance:
Properly sized aluminium provides effective power distribution.
Suitable for Large Conductors :
Large aluminium busbars can be practical where enough installation space is available.
Easier Handling :
Lower weight can simplify transportation and installation of large busbar sections.
Potential Cost Benefits:
Aluminium can provide material-cost advantages depending on market prices and the complete installation design.
Suitable for Large Distribution Networks :
Aluminium is particularly attractive for busway. Busduct, switchboard, and other large-scale distribution systems.