Bus duct is a new type of product developed in the United States. Using copper or aluminum as conductors, supported by non olefin insulation, and then installed in a metal channel to form a new conductor.

In 1954, Japanese companies truly solved practical applications, and the use of bus ducts has since achieved social development. Nowadays, power systems have become an indispensable wiring method in electrical equipment such as high-rise buildings and factories.

Due to the increasing electricity demand of various construction companies such as buildings and factories, and the growing need for this development year by year, we have adopted our unique circuit wiring design method, namely the conduit method, which has brought many economic difficulties during the construction period. Moreover, when the power distribution management system needs to be changed, it is almost impossible to make some issues simple and easy to understand. However, if bus ducts can be used, it is easy to achieve the purpose of teaching and also make the building more beautiful.

Modern high-rise buildings and large factories require a large amount of electricity, and in the face of such huge loads that require tens of thousands of amperes of high current, it is necessary to choose safe and reliable conduction equipment. The busbar system is a good choice. Bus duct system is a distribution device for efficient development of current transmission in enterprises, especially to meet the economic structure and reasonable wiring needs of increasingly tall buildings and large production plants.

The busbar trunking has gone through three generations from air type to composite insulation type.

The first generation of air type bus duct

Starting from the mid-1950s, conductive strips were supported by insulating gaskets in the casing and insulated through an air environment medium. The distance is 50 millimeters. In the humid climate of the south, due to the use of soft copper connections between busbar nodes, busbar nodes are prone to oxidation, resulting in poor contact between busbar nodes and busbars. And the volume between the joints is too large, the size of the horizontal bus segments is inconsistent, and the design is not aesthetically pleasing enough. The shell protection technology level is IP40~IP54.

The air type bus duct uses copper bars for conductivity and adds insulation spacer blocks to separate the copper bars. The conductive strip is supported by an insulating gasket inside the casing and sealed with some metal material casing. Insulated by air environment medium, with a phase to phase distance of 50mm. This bus duct is a primary basic technology in the development history of bus ducts in China. Due to the limitations of information technology, the busbars in the bus duct are exposed. When dust gets damp and enters the system bus, it covers and clumps up, causing different short circuits between some conductive phase lines and leading to accidents.

Second generation CCX, CMC, CFW

Composite material insulated busbar, in addition to the conductive strip itself, also has an insulation layer, and the relationship between phase lines also has a certain air environment dielectric insulation. In the later stage, a four-way cross-linked cured insulation layer will be used, with no gap between the insulation layer and the conductive layer.

Third generation CCX2 model

It was developed in the mid-1980s, covering conductive bars with insulating structural materials and then fixing them on both sides. A special type of bus that emerged during the evolution of the second generation of buses is the dense bus air socket. Due to changes in production processes, it can basically become a technology intensive busbar intensive socket, that is, an overall knowledge intensive busbar trunking.

Fourth generation innovative application types

From the perspective of customer needs, develop different field specific bus slot products for different application areas;

▲ Newly built energy-saving bus duct applied to power distribution in a large enterprise factory;

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Cast busbar for outdoor and underwater use; Fire resistant busbar used for emergency power supply fires;

Micro power bus for large data centers;

▲ Used for lighting bus ducts in public service places such as large enterprise parking lots, stations, airports, etc.

Fifth generation: Intelligent control energy-saving bus duct

▲ Rely on Internet information technology to realize the daily management and operation monitoring of bus duct, find and avoid financial risks in advance, and ensure the safety of enterprise operation.

▲ Upgrade the overall structure of the product. The upgraded busbar has better conductivity, insulation, energy efficiency, corrosion resistance, and impact resistance than the previous generation. The innovative enterprise patent information technology that can be included in the installation and landing application will make the landing more convenient, and the overall social security will be improved in the later stage.

Innovative coating technology meets the needs of users and enables bus ducts to become artistic decorative spaces.

For more knowledge about bus ducts, please refer to www.cesko-dl.com