BMC air insulated enclosed bus duct

BMC air insulated enclosed bus duct

Technical characteristics of air type bus ductpoint

1. It can heat the air to a very high temperature, up to 850 ℃, while the shell temperature is only around 50 ℃.

2. High efficiency: up to 0.9 or above.

3. Air type busbar trunking has clean air and small volume.

4. Multiple types of air electric heaters can be designed according to user needs.

5. Air type bus ducts are durable and have a service life of several decades, provided that they do not violate usage regulations.

6. The heating and cooling rate block can reach 10 ℃/S, with fast and stable adjustment. It will not cause temperature control drift due to the phenomenon of controlled air temperature leading or lagging, making it very suitable for automatic control.

The shell of the air type bus duct is made of high-strength cold-rolled steel, which is cold-rolled into a corrugated structure in one go. It not only has a beautiful and generous appearance, but also greatly enhances the mechanical strength of the bus duct and the dynamic and thermal stability of the system

A safety protection baffle is designed at the insertion hole of the air type bus duct. Only when the protective baffle is opened can the plug-in box be connected, effectively preventing dust and foreign objects from entering the socket, thereby improving the protection of the bus duct, preventing misoperation, and enhancing the safety of the bus.

Product performance

1) The outer shell of the bus duct is made of aluminum alloy profiles, which are lightweight, corrosion-resistant, and highly stable.
2) The structure is reasonable and can be installed with a large span of less than 2 meters. It can also be used as an installation bracket for small lighting equipment.
3) A socket is set every 400mm in the bus duct, and the plug-in box can be plugged in with electricity.
4) Adopting a modular structure, it has fast and reliable electrical and mechanical connection performance.
5) High protection level:
6) Flexible and convenient installation.
7) Install switches or fuses in the plug-in box according to user requirements

Key Features:
1. The busbar shell is formed by rolling, with a small volume and exquisite appearance, greatly enhancing the bending strength of the busbar and strong load capacity, ensuring installation in large spans of more than 6 meters.
2. The internal insulation of the busbar is made of polycarbonate high-strength engineering plastic, which improves the busbar's resistance to dynamic and thermal stability, enabling it to withstand large electrical and thermal stresses.
3. Adopting a separated air insulation form, the same safe working distance and creepage distance of the busbar are much greater than the standard requirements. At the same time, the conductive strip is wrapped with AC polyethylene heat shrink tubing, thereby enhancing the safety performance of the product.
4. The busbar joint adopts a docking type single bolt clamping structure, which is easy to install and greatly saves installation time.

Adopting a separated air insulation type, the safety clearance and creepage distance between phases are much greater than the standard requirements.
The internal insulation components are made of high-strength engineering plastics, which improves the resistance and thermal stability of the bus duct.
The special structure used for the joint can prevent installation errors.
Set up a safety guard at the socket, and the plug-in box can only be inserted when the guard is pulled open. When the socket is not in use, the protective baffle can be pulled and closed to prevent dust or foreign objects from entering the socket, and to prevent misoperation, greatly improving the safety performance of the busbar.
When plugging in the plug-in box, there is no need to cut off the power supply because the ground wire is always connected first and then disconnected.
Flexible wiring
The bus duct socket adopts modular design, with a large number of sockets reserved throughout the system. Ensure that the load can be connected to the bus duct unit in a short path, without changing the bus duct system for the addition, movement, and maintenance of workshop equipment.

The product complies with IEC standards, including IEC60439-1~2, GB7251.1~2, and UL857.
The bus duct can ensure long-term normal operation at rated current and 110% rated voltage.
The bus duct has undergone dynamic and thermal stability tests according to the data in Table (1), and the bus shows no noticeable deformation after the test.

BMC air insulated enclosed bus duct

① High loss of electrical energy

② Shortening the service life of busbars

③ Reduced safety factor, easily causing fire accidents in surrounding materials and high temperature personnel in the shell

④ The aging of surrounding insulation materials and equipment will be accelerated, such as wires and cables directly connected to the busbar.

⑤ Has an impact on the surrounding environmental temperature

⑥ The higher the temperature rise inside the bus duct, the greater the voltage drop.

What impact will high temperature rise of bus duct cause

A busbar bridge is made of steel plates to form a shell and install rectangular busbars inside. The busbars are fixed to corresponding angle steels with insulators. Generally, a busbar bridge is used to connect the main busbars of two separate cabinets. The structure of a busbar bridge is relatively simple, and when making it, just pay attention to the electrical clearance and the direction of the busbars.

There are two types of bus ducts: dense insulated bus ducts and air insulated bus ducts. Bus ducts are also made of steel plates to enclose the busbars. The structure of bus ducts is relatively more complex compared to bus bridges,

A busbar bridge is a rectangular support protective body that is simply made for copper busbar bridging (cabinet to cabinet, cabinet to wall). Busbar ducts can also be used, but the busbar ducts are composed of a complete structure on the right side, with a small volume and insulated accessories inside, which can be longer, more specific, and multiple turns and expansions. They are air insulated enclosed busbar ducts, with variable capacity, fire protection and other units in the middle. They are also equipped with plug-in boxes to provide connection point power supply.

Having sufficient mechanical strength. Surface spray coating, good corrosion resistance, smooth surface, beautiful color, strong adhesion of anti-corrosion layer. The current carrying conductor is made of copper material in accordance with the standards GB5588.2085 and GB5588.3-85, and the contact surface in contact with the conductor is specially treated. Make the connection part reliable, with low heat generation and reliability. 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 the same current level have the same basic structure 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: Connect the unit to the incoming line and box to form a complete set of bus ducts and cable connection parts