Compared to aluminum busbars or alloy conductors, copper busbars offer superior conductivity and durability. While lightweight, aluminum busbars have only 60% the conductivity of copper and are prone to oxidation over time, leading to increased contact resistance. Copper busbars, on the other hand, have a high copper content that forms a dense oxide film, slowing down corrosion and extending their lifespan.
In high-temperature environments, copper busbars have a much higher softening temperature than aluminum (approximately 660°C), preventing safety hazards caused by material softening. Furthermore, the mechanical strength of copper busbars allows for larger cross-sectional area designs, meeting the demands of high-current transmission, reducing the number of parallel lines, and lowering system complexity.