With the emergence of modern engineering facilities and equipment, the power consumption of all walks of life has increased rapidly, especially the emergence of numerous high-rise buildings and large workshops. The traditional cables used as power transmission conductors can no longer meet the requirements in large current transmission systems. The parallel use of multiple cables brings a lot of inconvenience to on-site installation and construction connection. The busway is a new circuit method called "Bus-Way-System" developed by the United States. It is a closed metal device composed of copper and aluminum bus bars, which is used to distribute the components of the dispersed system. High-power, low-voltage indoor power transmission trunk line projects have increasingly replaced wires and cables. It has become popular in developed countries abroad, as well as Hong Kong and Macau in my country. In Guangzhou, Guangdong, my country, where the power distribution room of buildings above 12 floors is out of line, more than 90% of the main trunk lines leading to the floor use bus ducts; 630KVA transformers must use bus ducts to the power distribution cabinet.

Nowadays, bus ducts are widely used in many buildings to replace cables, because compared with traditional cables, the advantages of bus ducts are more obvious. Let’s take a look at the obvious advantages of bus ducts.

1. Easy to install

The busway installation process is very convenient and flexible, which greatly saves installation time.

2. Flexible wiring

The busway socket adopts a modular design. The entire system can reserve a large number of sockets to ensure that the load can be connected to the busway unit with the shortest path. There is no need to change the busbar system for the addition, movement and repair of workshop equipment.

3. Large span installation

The busway shell adopts roll forming, small size and exquisite appearance, which greatly improves the long load capacity. It can load 60Kg at the center of the busbar with a span of 6m, and the deflection does not exceed 10mm.

Four, safe and reliable

The separated air insulation type is adopted, and the safety net distance and creepage distance between phases are far greater than the standard requirements; the internal insulation parts are made of high-strength engineering plastics, which improves the resistance of the busway to dynamics and thermal stability; the special structure of the joints can be used. Prevent misoperation during installation.

5. Low construction cost

Although the cost of the bus duct is slightly higher than that of the cable, the use of the bus duct can greatly reduce the construction cost compared with the various accessories for wiring and the entire power system.

At present, bus ducts are widely used in modern buildings all over the world. Modern high-rise buildings and large-scale workshops require huge electric power. In the face of this huge load, the powerful current of hundreds of amperes needs to be safe and reliable. Conduction equipment, bus duct is a good choice. The busway system is a power distribution device that efficiently transports current, adapting to the needs of economical and reasonable wiring in increasingly tall buildings and large-scale factories.