630A dense enclosed bus duct

630A dense enclosed bus ductThis type of bus duct is available in two types: three-phase four wire or three-phase five wire. It has the characteristics of quick installation, easy use, safety and reliability, and is suitable for power supply in automobile manufacturing workshops, large shopping malls, exhibition halls, sports halls, airports, and high-rise buildings.

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 reducing the risk of personal electric shock.

630A dense enclosed bus ductMultiple protective structures are used to wrap the conductive row, such as wrapping insulation film on the upper and lower arms of the conductive row to ensure the overall insulation of the conductive row. In addition, a sealing strip is further provided between the connection side sealing plate and the connection cover plate to increase the sealing performance of the two assembled together. At the same time, the upper and lower cover plates and side plates are made of non-magnetic alloy materials, greatly reducing the electromagnetic wave radiation generated during the operation of the conductive bars. A heat sink is also added between the two conductive bars, and the surface of the conductive bars is also equipped with several heat dissipation fins to improve the heat dissipation efficiency of the conductive bars.

If the current density per square millimeter of the coverage current specification is equivalent to the current density of the test current specification, there is no need to check the temperature rise report of the coverage current specification; If the current density of the covered current specification is greater than the test current, the temperature rise report for each current specification must be checked (including photos of the external structure, conductor specifications, temperature rise value, and test current, etc.). Using a circuit resistance tester to measure the conductor specifications and resistivity of the bus duct, clamp the copper bars at both ends of the bus duct and measure the resistance. Measure the length, width, and thickness of the conductor to calculate the resistivity. This detection method can meet the needs of controlling copper-clad aluminum, welding copper bars in the middle at both ends, identifying large and small ends, and identifying conductor materials. According to the GB5585-2005 standard, copper bars have a conductivity of ≥ 97% and a resistivity of ≤ 0.01777 Ω· mm2/m, while aluminum bars have a conductivity of ≥ 59% and a resistivity of ≤ 0.029 Ω· mm2/m.

Features:

1. The busbar trunking adopts a docking installation method, which makes the installation process of the busbar trunking very convenient, flexible, and greatly saves installation time.

2. The bus duct adopts a separated air insulation type, which improves the heat dissipation of the bus duct and reduces the impedance; The internal insulation components are made of high-strength epoxy resin, which improves the frost resistance and thermal stability of the bus duct.

3. All current levels of bus ducts use a unified cover plate, with high standardization, strong interchangeability, and convenient variable capacity interfaces.

4. Bus ducts can be diverted through plug-in boxes to avoid the troubles of cable stripping and unsafe connections. If your product or equipment is replaced, reassemble and install the busbar, and the busbar socket branch can always reach the position you need.

The insulation of the section test can be carried out during the connection process of the bus duct, and it can be tested once every time it is connected to a certain length according to the number of floors or the number of bus duct sections. And keep records, control the insulation condition at the joint at any time, and conduct segmented testing until the system testing after the installation of the bus duct is completed. Trial operation: All civil engineering, decoration and other projects have been completed and cleaned, and the equipment and wiring connected to the plug-in bus duct have been installed. Clean the enclosed bus duct thoroughly, ensure tight joint connections, provide accurate phase sequence, ensure good grounding (PE) or neutral (PEN) of the enclosure, and pass the insulation shake test and AC power frequency withstand voltage test before it can be energized. The AC withstand voltage test voltage for low-voltage bus ducts is 1KV. When the insulation resistance value is greater than 10M Ω, a 2500V megohmmeter shake test can be used as a substitute, with a test duration of 1 minute and no flashover phenomenon.

There are diverse approaches to surface protection technology: 1. Coating protection methods alone can be divided into three categories: metal, organic, and inorganic. Metal deep layers can be treated with electroplating, powder plating, hot dipping, solution spraying, metal cladding, etc; In addition to ordinary zinc metal, there are various combinations of zinc alloys or aluminum. Another example is organic coating. There are various resins to choose from just for coatings, and so on. Therefore, surface protection technology cannot be regarded as static and unchanging, and continuous progress should be made in terms of technical and economic aspects. For engineering strips with harsh corrosive environments and high durability requirements, it is advisable to explore more necessary surface protection treatment methods.

(1) Single bolt clamping terminal

The bus duct design adopts advanced single bolt clamping terminals as the connecting components of the bus duct unit. Due to its special structure, it can prevent incorrect operation during installation. At the same time, as long as one bolt is tightened, two bus duct units can be reliably and quickly connected.

(2) High protection level socket

The bus duct is designed with a safety protection shield at the socket, and the plug-in box can only be inserted when the shield is opened. When the socket is not in use, the shield can be closed and lead can be added，Preventing the entry of dust and foreign objects at the socket improves the protective performance of the busbar trunking, prevents misoperation, and greatly enhances the safety of the busbar.

(3) Shell (protective shell)）Number of levels

The bus duct is designed with 5 current levels and only 3 levels of enclosures are used. In this way, when the system changes capacity according to adjacent levels, there is no need to replace the casing of the bus duct. For example, when 400A changes to 630A, the casing size is the same. Therefore, it greatly facilitates installation.

(4) Large transmission of electrical energy

The bus duct is designed as a separated air insulated type, which improves the heat dissipation of the bus duct, lowers the impedance, and achieves economical power transmission through the bus duct.