Tubular busbars are important equipment for power transmission and distribution. Depending on their insulation method and material, tubular busbars can be divided into several types, including fully insulated tubular busbars, semi-insulated tubular busbars, copper tube busbars, and aluminum tube busbars.

Fully insulated tubular busbars are tubular busbars with copper, aluminum, or alloy tubes as conductors and an outer layer of insulation. Its insulation effect is very good, with a surface potential of zero and safe to touch, making it suitable for power transmission and distribution in any environment. It operates stably and safely, with a protection level of up to IP68.

Semi-insulated tubular busbars are also made of copper or aluminum tubes as conductors and an outer layer of insulation. Compared to fully insulated tubular busbars, the insulation layer of semi-insulated tubular busbars is thinner and mainly relies on insulators for insulation, making it unsuitable for direct touch. It is suitable for outdoor overhead feeders.

When classified by conductor material, tubular busbars are divided into copper tube busbars and aluminum tube busbars. What are the advantages and disadvantages of copper tube busbars and aluminum tube busbars? Let's take a look together!

Copper tube busbars are tubular busbars with copper as conductors. Copper has the best conductivity and longest service life. In power engineering projects that require large current transmission, copper tube busbars are widely used. However, the price is relatively high, so copper tube busbars can be considered for projects with sufficient budgets.

Aluminum tube busbars are tubular busbars with aluminum alloy as conductors. Although aluminum's conductivity is only two-thirds that of copper, its density is only one-third that of copper. Therefore, to transport the same amount of electricity, aluminum tube busbars often need to be enlarged and thickened. The oxide film on the surface of aluminum tube busbars not only has corrosion resistance but also has a certain insulation performance. In addition, aluminum tube busbars are relatively inexpensive, so they are widely used in engineering projects that require cost control.

In summary, choosing different types of tubular busbars is very important depending on the requirements of different engineering projects. Fully insulated tubular busbars are suitable for power transmission and distribution in various environments, while fully insulated copper tube busbars are suitable for projects with sufficient budgets and large current transmission requirements. Fully insulated aluminum tube busbars are suitable for projects with low budgets and large engineering quantities.