Top 10 Chinese Polyacrylamide Brands Worth Knowing: An Industry Overview
09,21,2026 14 views
1. Air type bus duct and fully closed reinforced insulation type high-voltage bus duct: The insulation level of the insulation layer reaches level 8. Developed a busbar slot piercing movable joint.
2. Dense bus duct:
The protection level of the shell can reach IP68, the fire resistance level can reach 3h, the short-circuit strength can reach 10kA, and the larger span can reach Igm.
3. Resin casting without shell fully closed bus duct:
In addition to the benefits of dense and two-layer insulated bus ducts, its fire resistance time reaches 950 ℃ for 90 minutes, the enclosure protection level reaches IP68, and it can be used for a long time in corrosive environments. It can withstand impacts of more than 6J, has strong overload capacity, and will not short-circuit between phases. Excellent composite resin, with a pressure resistance of over 5000V, and can ensure long-term operation at -50 ℃ without cracking.
Introduction to the structure of air type bus duct
This type of bus duct is primarily suitable for communication with three-phase four wire and three-phase five wire systems, with a frequency of 50-60Hz, an additional voltage of 660V, and an additional operating current of 250-6000A in power supply and distribution systems. It is responsible for the distribution mission and is used for connecting low-voltage distribution panels with large and medium-sized loads. It is mainly used in modern workshops, factories, and high-rise buildings. This series of bus ducts is an improved product based on traditional air type bus ducts.
conductor
The conductor of the air type bus duct is made of high-purity electrolytic copper, and the surface of the conductor is plated with tin throughout its entire length, which enhances its ability to resist oxidation and corrosion. After processing, it is heat shrink treated with PVC pipes, and insulated blocks are used to separate phases and ground. The copper busbar is protected by two layers of insulation, greatly enhancing its insulation function. It is then enclosed in a grounded metal casing.
shell
The shell of the air type bus duct is made of high-quality high-strength cold-rolled steel, which is cold-rolled into a corrugated structure in one go. It not only has a beautiful and elegant appearance, but also greatly enhances the mechanical strength of the bus duct and the dynamic and thermal stability of the system, which can solve the problem of large-span equipment on construction sites.
socket
A safety protection baffle is planned at the insertion hole of the air type bus duct. The plug-in box can only be connected when the protective baffle is opened, effectively avoiding the entry of dust and foreign objects at the socket. This enhances the protection of the bus duct, avoids misoperation, and greatly improves the safety of the bus.
The protection level of the shell ranges from IP40 to IP54, and can be flexibly selected according to the equipment's operating environment to achieve the best economic transmission in the bus duct.
According to system requirements, plug-in interfaces can be set in any direction on the bus duct, making it convenient for equipment and tapping, and ensuring safe use.
