Waterproof pouring type insulated enclosed bus duct

Waterproof pouring type insulated enclosed bus duct

The method for detecting the cross-section of the copper layer is to find a sample, weigh it, calculate the sample volume, and calculate the specific gravity. Usually, the busbar cross-section should be selected based on the long-term operating current. And verify the short-term thermal stability and dynamic stability of the bus duct under the condition of passing through the short-circuit cable. Due to factors such as the resistance of conductors and the AC current meter effect when multiple conductors approach each other, heating can occur when current passes through the bus duct. In general, high-voltage bus ducts and DC power supply systems consist of AC panels, rectifier panels, and DC panels. After adopting a closed bus duct, it is necessary to adjust the conventional DC power supply system: install one or two high-capacity DC split screens in the exchange room, and set up large circuit outputs in the DC split screens; Install a bus tie screen in the DC power supply system of the power room, which functions as a bus 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; The power supply of the DC column head cabinet in the exchange room is all from the DC distribution screen in this room. It is a type of enclosed busbar with a higher protection level, reaching IP68. Its main feature is its waterproof performance (which can be installed outdoors, in tunnels, bridges, and cable trenches); Cast busbar has excellent anti-corrosion performance (widely used in highly corrosive environments such as chemical industry enterprises); Cast busbar has certain fire resistance performance (it can be applied in situations with high fire safety requirements, and the cast busbar material epoxy resin has extremely long fire resistance and high stability); The cast busbar has certain explosion-proof performance (the epoxy resin cast shell is suitable for various hazardous environments)

safeguard:

The yellow safety cover plate on the plug-in interface equipment of the busbar system ensures that operators will not come into contact with live conductors at any time. The protection level provided by the cover plate is IP54, allowing the busbar system to be used in various harsh environments without the need for any special equipment.

Because households do not have a high demand for electricity, ordinary copper wire can provide electricity for everyone If it is a large workshop, the current needs several thousand amperes So, the current that this copper wire can provide is far from enough. At this point, the copper bar comes into play because its cross-sectional area is larger and can carry more current The basic prototype of plug-in bus duct is to cover the copper busbar with a protective shell Now, do you understand the function of plug-in bus ducts That is, it can provide a larger current as needed, achieving 6300A and 500A reversibility, so that there will be no phase error when connecting the two busbars, simplifying the equipment program and promoting safe and fast equipment.

Waterproof pouring type insulated enclosed bus duct

Notes:

The fully enclosed resin cast waterproof bus duct is a non-metallic shell bus duct. The waterproof bus duct is made by mixing a specially formulated composite resin and a quantitatively selected mixed material to create a high-performance insulation material. The copper bus is directly cast and sealed. There are no air gaps, no chimney effect, and busbar burrs or overloads will not cause short circuits. The insulation material does not contain halogens, and flame retardant does not release harmful substances. The enclosure protection level is IP68, which is not only water-resistant, fire-resistant, and corrosion-resistant.

All weather product, capable of operating in an environment of minus 40 ° C for extended periods of time, with insulation resin that does not crack. No metal shell, resistant to various chemical corrosion, working in environments with stray currents, will not cause electrical corrosion of the shell. The water-resistant function can be used for long-term underwater operations, in cable trenches, or buried underground. Fire resistance, capable of operating in flames at 950-1000 ° C for more than 90 minutes without interrupting the circuit.

How to install bus duct know bus duct

1. The entire mainline system is assembled by plugging multiple sections of bus duct units (according to their corresponding factory numbers): after every two sections of bus duct are plugged and installed, the distance between the ends of the two cover plates is 200mm.

2. After inserting the two ends of the bus duct into each other, the dense copper bus duct is priced. Insulated bolts are inserted, bowl shaped washers are placed, and the bolts are tightened with a torque wrench. Then, the joint cover plate is installed and the joint bolts are tightened. The inspection requirement after tightening should be checked with a 0.01mm feeler gauge, which should not be able to be inserted.

3. Insert the starting and ending busbars into their respective factory numbered starting and ending boxes, and fix them to their upper surfaces with a dust plate.

Main line unit, feeder unit, splicing unit, variable diameter unit, expansion unit, various bending units, etc. Main line unit: The main line unit is divided into main line unit (i.e. without boundary) and connecting unit. Two main line units with opposite current levels have opposite basic structures and external dimensions, making it easy to connect the two main lines.

Feeding unit: The feeding unit includes a feeding device, a feeding box, an intermediate feeding device, etc. Incoming unit: The unit is fed into the box to form a set of incomplete bus ducts and cable connection parts. It enters the line unit and can be directly connected to the distribution cabinet or transformer. The fire-resistant bus duct serves as the input or output end of the bus bar.

Tap unit: Tap junction box is used to connect the power circuit with the main line, and the breaking current of the junction box is controlled by the circuit breaker. Variable diameter device: The variable diameter device is used to connect the transition section of two different rated current busbars. The standard length of the variable diameter device is 1 meter. Any current level can be adjusted to another current level of 60~5000a.

Various bending units: There are four types of bending units: L-shaped, T-shaped, Z-shaped, and cross shaped. Busbars are used for connecting horizontal and vertical distributed bus ducts and changing the direction of busbars. Junction box: The junction box is installed at the end of the bus duct for safety maintenance, and various bus ducts have corresponding junction boxes.

Product performance:

1. Usage conditions
ambient temperature
Upper limit:+40 ℃
Lower limit: -25 ℃
Altitude: below 2000m
humidity
The relative humidity should not exceed 50% at the highest temperature of+40 ℃; When the temperature is low, it is allowed to have
Higher relative humidity
Condensation conditions: A busbar system can be composed of multiple busbar units;