To prevent issues such as excessive cable laying, lack of coordination, and inconvenience, it is recommended to use a one-time method to transmit DC power from the power room to the load room. The use of enclosed bus ducts in the DC power supply system of computer rooms is an effective option to reduce cable usage. It has the characteristics of strong heat dissipation, environmentally friendly products, and sensitive wiring. It has practical application significance in comprehensive buildings with centralized power supply. At present, this treatment plan is increasingly being used in various large-scale power plants.
Bus ducts are commonly used in AC power systems of high-rise buildings. Bus duct is a bus system composed of metal plates (steel plates or aluminum magnesium alloy plates), used to maintain the shell, conductive strips, insulation materials, and related accessories. According to the insulation method, bus ducts can be divided into three types: air type bus ducts, dense insulated bus ducts, and high-strength bus ducts.
After analyzing the good application of bus ducts in AC systems, operators should choose dense insulated bus ducts as the transmission medium for electrical energy in DC power systems, so as to ensure more reliable and safe supply of electrical energy to the load side.
The enclosed busbar is produced in a complete set by the factory, with guaranteed quality, minimal operation and maintenance workload, and cumbersome construction equipment. In addition, the dense insulated bus duct shell adopts multi-point grounding, so the shell is basically in the center type of equipotential connection, greatly simplifying the structure and eliminating the risk of personal electric shock.
Under normal circumstances, a DC power supply system consists of an AC screen, a rectifier screen, and a DC screen. After sealing the bus duct, it is necessary to stop adjusting the conventional DC power supply system: install one or two large capacity DC split screens in the AC room, and install a large circuit output on the DC split screen; Install a busbar in the DC power supply system of the joint screen in the power room, whose function is to output the busbar. There is no output circuit set in the cabinet. The DC shunt screen is connected to the bus connection screen through a blocking bus duct; The DC column cabinet in the communication room is a split screen screen that is led out from the DC branch of the computer room.
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