Corrugated bus duct 100A-5500A

Corrugated bus duct 100A-5500A

The shell is made of aluminum magnesium alloy profiles, consisting of two side plates and upper and lower cover plates. The side plates are designed with heat dissipation fins and dovetail grooves, which not only facilitate the heat dissipation of the bus duct, but also enhance the rigidity of the shell and facilitate installation. At the same time, it reduces the weight of the bus duct, allowing for large-span design and reducing installation brackets. Lock with a torque wrench after ensuring it is in place; For the docking type bus duct, the ends of the conductors of the two bus ducts that need to be connected should be partially aligned parallel to each other, and then the copper connection piece and insulation partition should be inserted into the phase gap between the bus duct ends(Each phase of the busbar is clamped with a copper connector on the left and right sides, and an insulating partition is placed between the copper connectors.)After confirming that there are no issues, insert the insulation bolt and pay attention to whether the copper connecting piece, busbar end, and insulation partition holes are aligned, whether the copper connecting piece and insulation partition are in place, and tighten the bolt.

The bus duct should be regularly inspected at least once a year during long-term operation. Check that the total load current does not exceed the design current and the rated current of the main busbar slot. Before the maintenance of the busbar trunking, a power outage inspection of the busbar trunking system is required. At the beginning of the dense busbar trunking, all power sources of the busbar trunking are cut off, and a multimeter is used to measure whether there is voltage in the conductor. The busbar trunking system can only be routinely maintained after confirming that it is not energized. Prevent serious accidents caused by high voltage that may cause physical injury or even death to operators. Use sufficiently sturdy materials for the busbar trunking to ensure safety during transportation and lifting during installation. When using ropes to lift bus ducts, thick cloth or corrugated paper should be placed under stress to protect the bus ducts3150The bus duct is protected from damage. When lifting2500AWhen using the above bus ducts, they should be clamped with sturdy wooden boards and tied with ropes to prevent deformation of the bus duct casing. buswayOutdoor corrugated bus ductBefore connecting the bus duct, check whether the contact surface or insulation material is damaged, At the same time, check for any dirt, dust, or other foreign objects, and if so, make sure to clean thoroughly.

Has strong insulation performance and does not emit toxic gases when exposed to fire. The dense bus duct socket interface is easy to set up and can accommodate a large number of sockets with strong universality. When adjusting the power configuration position, there is no need to change the power supply system. The production process of dense busbar trunking determines the quality. The structure of dense busbar determines its particularity and complexity in the design, production, manufacturing, and installation processes. The following are the precautions for Zhengfeng dense busbar in the production process****explain.

Technical Specifications

1The bus duct can ensure the rated current and110%Long term normal operation under rated voltage.
2The protection level isIP40.
3The ambient air temperature of the bus duct is20±5℃, relative temperature is50-70%Under normal conditions, the insulation resistance of each section is not less than20MOh.
4The busbar system can withstand energy3750VPower frequency withstand voltage, duration1minNo air penetration or flashover phenomenon.
5When the busbar system is operated at rated current for a long time, its temperature rise shall not exceed; Connecting terminals:60KMetal casing:30KSurface of insulation components inside the groove:40K.

6The number of times the plug-in box and bus duct are plugged and unplugged shall not be less than200Next time.

When installing and using bus ducts in outdoor construction environments, we not only need to consider the related corrosive damage factors, but also need to take into account the differences in temperature and climate. There are many differences in the damage of bus ducts under different temperature and humidity conditions, so in practical work, we should pay more attention to the differences in these factors, so as to optimize the temperature resistance performance of bus ducts.

Regular maintenance should be carried out at least once a year during long-term operation. Check that the total load current does not exceed the design current and the rated current of the main busbar slot. Before the maintenance of the busbar trunking, a power outage inspection of the busbar trunking system is required. At the beginning of the dense busbar trunking, all power sources of the busbar trunking are cut off, and a multimeter is used to measure whether there is voltage in the conductor. The busbar trunking system can only be routinely maintained after confirming that it is not energized. Prevent serious accidents caused by high voltage that may cause physical injury or even death to operators. Regularly dust the surface of the busbar trunking system to ensure good heat dissipation. After the maintenance of the busbar trunking system is completed, the complete maintenance record of the insulation resistance should be checked before re powering.

Corrugated bus duct 100A-5500A

The higher the protection level of the bus duct, the better, because the higher the protection level, the better the sealing performance of the bus duct, the worse the heat dissipation performance, and the greatly reduced the electrical performance of the bus duct. So, when choosing the protection level of busbar trunking, it should be selected according to the actual situation. For example, in the distribution room, the protection level of the distribution cabinet is generallyIP40The selection of protection level for the bus ductIP40Just enough. The selection of busbar trunking is usually considered from the following aspects: whether there are fire safety requirements, usage environment, etc

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 deliver electrical energy to the load side.

Sheet metal fabrication:

aThe cutting, punching, and bending accuracy of the busbar must be ensured, especially the bending accuracy. Changes in the bending angle can lead to uneven lengths of the conductor ends

bThe punching and positioning of the bent side panel should be strictly carried out according to the air type standard, otherwise the busbar at the corner will loosen, resulting in a decrease in heat dissipation effect and an increase in operating noise

cAll burrs on the cover plate and side plate should be cleaned thoroughly. When bending the side plate horizontally through the steel shell, the outer plate needs to be formed by a bending machine to reduce the bending radius; The inner panel is manually bent, increasing the bending radius in order to****Avoid sharp edges and corners between the conductor and the side plate to protect the insulation layer from damage

1.When installing the bus duct, the overall structure should be horizontal and vertical, and the bus duct should be installed horizontally. The distance between the two brackets should be less than or equal to2500Mm, vertical installation spacing ≯3600㎜； When installed horizontally, the height above the ground should not be less than2.2mThe suspension rod should have technical measures for adjusting the level.

2.Vertical laying from the ground1.8mAbove, the installation bracket should be drilled with holes on the side panel of the channel, usingM6-M8Tighten the bolts. Brackets should be added at the corners of the busbar and at the connection with the plug-in box. When installing brackets in rows, they should be arranged neatly and spaced evenly. When the terminal box and starting box of the busbar are suspended, brackets should be used to fix them, and brackets on the wall and roof should be used****Fix with two expansion bolts, which should be equipped with flat washers and spring washers.

The characteristics of busbar trunking are a series of matching, commercial production, small size, large capacity, short design and construction period, easy assembly and disassembly, non combustible, safe and reliable, and long service life. Bus duct products are suitable for communication50Hz, rated voltage380VThe fire resistance time of this product is60Minutes90Minutes120Minutes180Minute type, when the temperature reaches920～1050It will only burn at high temperatures of ℃, and can reach full load operation8More than hours.

It has the advantages of small size, compact structure, reliable operation, high transmission current, easy to tap and feed, convenient maintenance, low energy consumption, and good dynamic and thermal stability, and is widely used in high-rise buildings. To master the low-voltage bus duct proficiently(Hereinafter referred to as bus duct)To install knowledge, it is necessary to first understand the classification and current rating of bus ducts. During on-site installation, bus duct products are mainly classified into air type and dense type according to their structural characteristics;Classified by conductors, there are mainly copper conductor bus ducts, aluminum conductor bus ducts, and copper-clad aluminum bus ducts;According to the classification of shell materials, there are mainly steel shell bus ducts and aluminum alloy shell bus ducts. In many construction operations, the use of bus ducts is quite extensive, so when it comes to the production process of bus ducts, we should understand what precautions are needed.

ambient temperature

Upper limit:40℃

Lower limit:-25℃

Altitude:2000mbelow

humidity

The relative humidity at high temperatures is40Not exceeding at ℃50%;When the temperature is low, it is allowed to have

Higher relative humidity

Condensation conditions: Yes

Basic Intensity:6Degree defense

Installation location: indoor, outdoor

In restricted installation environments, the installation of bus ducts is also restricted, and dense bus ducts have poor moisture-proof and heat dissipation effects. In terms of moisture prevention, the busbar is prone to moisture and water leakage during construction, causing a decrease in insulation resistance between phases. The heat dissipation of the busbar mainly relies on the shell. Due to the compact arrangement and installation between wires, the heat dissipation of L2 and L3 phases is slow, resulting in a high temperature rise in the busbar duct. The dense insulation plug-in bus duct is limited by the shell plate and can only produce horizontal sections no larger than 3m. Due to the small air gap between the busbars, a strong electric force is generated when the busbars pass through high currents, causing the magnetic oscillation frequency to form a superimposed state and resulting in excessive noise. Therefore, every type of bus duct has its advantages and disadvantages, and choosing the appropriate bus duct is crucial!