In recent years,some engineering projects still use traditional power supply systems,which can make the project very complex,especially in high-rise buildings with high power demand.To meet this type of project,it is necessary to use bus ducts.When using enclosed bus ducts,in order to avoid excessive cable laying and coordination problems,it is recommended to adopt a one-time method to transfer DC power from the power room to the load room side.

　　The use of enclosed bus ducts in the DC power supply system of the computer room is an effective way to reduce the use of cables.It has the characteristics of strong heat dissipation,environmentally friendly products,and flexible wiring.It has practical application significance in the comprehensive building of centralized power supply mode.At present,this solution has been increasingly applied in operational business rooms.Bus duct is commonly used in the AC power supply system of high-rise buildings.Bus duct is a bus system composed of metal plates(steel plates or aluminum magnesium alloy plates)as protective shells,conductive bars,insulation materials,and related accessories.Bus ducts can be divided into three types according to insulation methods:air type bus ducts,dense insulated bus ducts,and high-strength bus ducts.By analyzing successful application cases of bus ducts in AC systems,operators choose dense insulated bus ducts as the transmission medium for electrical energy in DC power supply systems,which can more reliably and safely deliver electrical energy to the load side.

　　The enclosed busbar is produced by the manufacturer as a complete set,with guaranteed quality,low operation and maintenance workload,and easy construction and installation.In addition,the dense insulated bus duct shell adopts multi-point grounding,which makes the shell basically in an equipotential grounding mode,greatly simplifying the structure and eliminating the risk of personal electric shock.In general,a DC power supply system consists of an AC screen,a rectifier screen,and a DC screen.After adopting a closed bus duct,it is necessary to adjust the conventional DC power supply system by installing one or two high-capacity DC split screens in the exchange room,and setting up large circuit outputs inside the DC split screens.The use of bus ducts in high-rise buildings allows for easy wiring and simplifies the entire power system,making the building more aesthetically pleasing.

　　Bus ducts have strong safety performance due to their unique structural characteristics.Provided support for large-scale power systems.Install a busbar in the DC power supply system of the power room,which functions as a dedicated busbar output and does not have an output circuit inside the cabinet;Connect the DC split screen to the bus tie screen using a closed bus duct;Moreover,the use of bus ducts is important as it does not increase the cost of the project.On the contrary,when calculated from the overall work schedule,the use of bus ducts is a more cost-effective way,so it is worth promoting vigorously.The power supply of the DC column head cabinet in the exchange room is all sourced from the DC distribution screen in this room.