Bus duct is a new type of power transmission and distribution equipment commonly used in modern high-rise buildings and large industrial plants. Compared with traditional cable distribution methods, bus ducts have the characteristics of high current transmission, strong overload capacity, beautiful appearance, compact structure, good interchangeability, and convenient branching power supply. Bus ducts also have excellent insulation performance and dynamic and thermal stability. Bus duct installation cycle is short, maintenance is convenient, power supply is safe and reliable, and it has good economic benefits.

Bus duct can be used as an electrical connection between the low-voltage side of the transformer and the switchgear or incoming cabinet. It can also be connected to the starting busbar through an incoming box using cables, and then branched out through a distribution port to deliver power to various electrical units.

Manufacturing standards for busbar trunking: JB/T9662, IEC60439-2, etc.