Do you know the knowledge points about bus duct

Posted by bruce zhu on October 21st, 2022

Do you know the knowledge points about bus duct

The bus duct was born in the United States and began to be put into practical application in Japan. Later, it was popularized in developed countries and regions like bamboo shoots after a spring rain. What is the bus duct? Busbar bending machine is a kind of trunk type tapping power supply system with large current, which is usually composed of metal shell (iron or aluminum), conductor (copper plate or aluminum bar), insulating material and related accessories.

With the emergence of modern engineering facilities and equipment, the power consumption of all walks of life has increased rapidly, especially many high-rise buildings and large factories. Traditional cables as transmission lines can no longer meet the requirements of large current transmission systems, and the parallel use of multiple cables brings a lot of inconvenience to on-site installation and construction connection. As a new type of distribution conductor, busbar machine came into being. Compared with traditional cables, it fully shows its advantages in large current transmission. At the same time, due to the adoption of new technologies and processes, the contact resistance and temperature rise at the connection at both ends of the bus duct and the splicing of branch ports are greatly reduced. The bus duct uses high-quality insulation materials, which improves its safety and reliability and makes the whole system more perfect.

(1) The forming device connected to the bus duct provides the following reliable protection: the busbar bender shell has a good electrical connection with the grounding terminal, and the connection resistance between the unpainted point and the grounding terminal does not exceed 0.1.

(2) Each unit of Siemens bus has a grounding terminal. The grounding terminal shall be welded with copper at the position easy to be grounded, and there shall be obvious and firm grounding signs.

(3) When the sub box and the bus trunk unit can be connected, there are safe electric shock measures. That is to say, the electrical conductor must be disconnected before the protective working circuit can be disconnected. Before charging the conductor, we must establish the connection information protection design circuit.

(4) 50% capacity ground bus.

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bruce zhu

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bruce zhu
Joined: February 8th, 2021
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