Since the 1990s, with the continuous development of the market economy, various new technologies have been introduced and developed, new products have emerged one after another, and bus ducts have also been widely used in construction projects. So, what is the purpose of bus duct?

·What is the purpose of bus duct - selection

1. Types, performance, and advantages of bus ducts

Enclosed bus duct (referred to as bus duct) is a bus system composed of metal plates (steel or aluminum plates) as protective shells, conductive rods, insulation materials, and related accessories. It can be made into plug-in enclosed system busbars with interval insertion of junction boxes, as well as various feed in enclosed busbars without junction boxes in the middle. In the power supply system of high-rise buildings, power lines and lighting lines are usually installed separately. The main power line is a busbar, which is installed vertically along the shaft wall one or more times. According to the purpose, the busbar trunking adopts commonly produced busbar trunking, straight busbar trunking (with or without jacks), L-shaped vertical (horizontal) elbow busbar, Z-shaped longitudinal (horizontal) bias busbar, T-shaped longitudinal (horizontal) three-way input busbar, X-shaped longitudinal (horizontal) four-way busbar, variable capacity busbar trunking, extended busbar trunking, terminal blocks, terminal junction boxes, plug-in boxes, busbar trunking and related enterprise accessories and fastening system equipment. Bus ducts can be divided into air insertion bus ducts, sealed insulation insertion bus ducts, and high-strength insertion bus ducts.

Air type plug-in bus duct (BMC). Due to the copper connection between busbars, they are prone to moisture and oxidation in the south, resulting in poor contact between busbars. In addition, the volume between the joints is too large, the size requirements for the horizontal bus section are inconsistent, and the appearance is not aesthetically pleasing.

The above is just an excerpt. For details, please click on "How to Choose Bus Ducts Reasonably in High rise Buildings" CESKO Bus Ducts

·What is the purpose of bus duct - comparison and analysis

1. Comparative analysis of performance characteristics between single core branch cables and compact bus ducts

The so-called branch cable refers to the cable T-joint that can be installed at the position required by the cable company. It is manufactured in the factory according to a specific process, and the joint part is made of PVC synthetic material through secondary injection molding and integrated molding. Branch cable products undergo strict electrical and physical performance testing before leaving the factory. They have the advantages of high reliability, sealing and waterproofing, flame retardancy and fire resistance, and are inexpensive and easy to use. Short installation and construction period, no maintenance required. Branch cables are divided into single core and multi-core types. But the manufacturing process of single core branch cables is simpler and the price is lower. Compared to single core and multi-core cross-sectional cables, they are lighter in weight, have smaller outer diameters, and come in a variety of specifications. Installation and construction are simple. The price of multi-core cables is significantly higher than the sum of multiple single core single cables of the same cross-section. Therefore, when selecting branch cables, single core branch cables are generally chosen.

Bus ducts are divided into two types: dense insulation type and air insulation type. Airproof type is lightweight, simple in structure, and relatively inexpensive in price; The dense insulation type has good heat dissipation conditions and a large rated current. Generally, the busbar trunking installed in the electrical conduit of high-rise buildings has a plug-in connector on each floor. The product is produced by the busbar trunking manufacturer, transported in sections to the construction site, and connected with bolts. Therefore, the reliability of bus duct connectors is greatly affected by human factors, and the reliability of finished branch cables is relatively low. But the bus duct has a large capacity, compact structure, and small footprint. The rated current can reach 5000A,

The above is just an excerpt. For details, please click on "Comparative Analysis of Branch Cables and Compact Busbars"

·What is the construction plan for bus duct

1、 Construction preparation

（1） Technical preparation

1. Required equipment and materials

(1) The enclosed plug-in busbar should have a factory certificate of conformity and installation engineering technical management documents. The technical documents should include technical information such as rated voltage, rated capacity, test reports, etc. The model, specifications, and voltage levels should meet the requirements of teaching design and development.

(2) Various specifications of steel should have no obvious corrosion, and clamps, bolts, and washers should meet design requirements and be hot-dip galvanized products.

(3) Other materials such as anti-corrosion paint, topcoat, welding rod, etc. should have a factory certificate of conformity.

2. Operating conditions:

(1) The construction drawings and product technical documents are complete.

(2) The installation of enclosed plug-in busbars and decoration works have been completed, and the installation of heating, sanitation, and ventilation systems has been completed. （3） Install electrical equipment (transformers, switchgear, etc.) and pass acceptance inspection.

The above is only an excerpt. For details, please click on "Characteristics of Busway Structure and Busway Construction Plan". of

Above is all the content in the bus pipeline. Bus duct is a distribution device that can effectively transmit current, especially suitable for buildings that meet increasingly high requirements. The economic development of large enterprises and factories requires reasonable wiring.