What is the difference between copper bar and insulating tube bus? This is a good question. With the rapid growth of power consumption in all walks of life, in the process of power erection, in order to meet the transmission requirements of various large currents and solve the shortage of traditional cable power, the bus came into being as a new distribution conductor. Compared with the traditional cable, the bus's strong current carrying capacity is superior to the traditional cable in current transmission. The copper bar and insulated tube bus are both sub categories of bus.

Copper bar and insulating tube bus

Copper bar is a kind of long conductor material with rectangular section or chamfered (rounded) rectangle, which is a kind of rectangular bare bus. The rectangular bus is also divided into copper bar ("rectangular copper bus") and aluminum bar ("rectangular aluminum bus"), which are indispensable conductive materials for manufacturing motor windings, high and low voltage electrical appliances, switch contacts, and wires for power supply and distribution installation.

Insulated tubular bus is a bus product that uses copper tube or aluminum alloy tube as conductor and external insulation. The official name is "tubular bus". The conductor of tubular bus is hollow tubular structure, which also has Copper tube bus and Aluminum tube bus Points.

What are the advantages of insulated tubular buses over rectangular buses/copper bars?

1. Current carrying capacity: the current carrying capacity of insulated tube bus is greater. The conductor of insulated tube bus is hollow copper tube or aluminum tube. Compared with conventional rectangular bus, the surface area of insulated tube bus conductor is larger and the current density distribution is more uniform. Data shows that the maximum rated current of insulated tube bus can reach 12000 A, which is beyond the reach of rectangular bus.
2. Mechanical strength: the allowable stress of the main body of the insulated tube bus is 4 times that of the rectangular bus, which can withstand greater short circuit current and higher mechanical strength, making the maximum support span of the insulated tube bus up to 8 meters.
3. Heat dissipation and corrosion resistance: the insulated tube bus is a hollow conductor, with ventilation holes at both ends of the bus. The inner diameter air duct can naturally form hot air convection, and the heat dissipation condition is better than that of conventional rectangular bus.
4. Installation and maintenance: the structure of insulated tube bus is simple, the layout is clear, and the installation is relatively simple. The amount of cleaning and maintenance work in the later period is also less!

To sum up, although the copper bar and the insulating tube bus are also conductive materials, the difference is quite large. It is very important to select the proper type of conductor material. If you don't know what kind of insulated tubular bus to choose, you can consult the senior engineer of Guangdong High Power Technology Co., Ltd., who has more than 30 years of practical experience in the bus industry to help you determine whether the insulated tubular bus is suitable for your use needs.

Guangdong High Power Technology Co., Ltd. is a high-quality manufacturer specializing in the R&D, production, manufacturing and installation of "epoxy resin cast insulated tubular bus" products. It has modern production workshops, sophisticated production equipment, and can be customized on demand. Guangdong High Power has a lot of experience in hydropower stations, booster stations, photovoltaic power generation, data centers, large workshops and large buildings. It has rich experience, mature technology, and is professional and trustworthy! Welcome to come for consultation and investigation!