09,18,2026 10 views
Dense busbar trunking and air busbar trunking are both types of busbar trunking. Dense busbar trunking tightly combines busbars with bonding materials, ensuring stable performance and reducing the volume of the busbar trunking. Air type bus ducts use air flow to dissipate heat by increasing the distance between busbars, while dense bus ducts are a product of technological progress,
Its performance has advantages in many aspects:
1. Different insulation media: There is a certain gap between the copper bars of the air bus duct, which means that the insulation between the copper bars mainly relies on air The insulation medium between the copper bars of the dense bus duct is organic insulation material
The arrangement of the two copper bars is different: the air type copper bars need to be separated, while the dense type copper bars are closely packed together, without short circuiting, because the copper bars are all insulated
3. Different appearances: Air bus ducts are generally thick at the top and bottom, while dense bus ducts become larger at the joints.
4. Different uses: Air has a better moisture-proof effect and is used in humid environments such as vertical shafts; Dense busbar trunking has a relatively high current and is used in main lines such as connecting busbars
5. Different heat dissipation: Air type heat dissipation mainly relies on convection between the air inside the slot and the air outside to conduct heat, resulting in lower heat dissipation efficiency On the contrary, if the busbar duct is enclosed, its radiator (shell) is directly connected to the busbar, so the heat dissipation effect is due to the air type
6. Different prices: Due to cost and other reasons, the intensive type has slightly higher prices
7 Different protection levels: The protection level of enclosed bus ducts is high, generally reaching IP68
8. Different installation environments: Air type bus ducts require much more installation space due to their larger overall volume On the contrary, dense bus ducts are very slim
9. Different installation efficiencies: For bus ducts of the same capacity, enclosed bus ducts are compact in size and easy to install quickly
10 Safety Differences: Air type bus ducts may accidentally have foreign objects fall into the ducts, affecting normal operation, while dense type ducts do not have this concern because they are fully enclosed
11 Chimney effect: In the event of a fire in the air bus duct, a chimney effect will occur; Dense type will not
12 lineup factor: When installing air bus ducts vertically or obliquely, the lineup factor needs to be considered. Incorrect positions can affect air circulation and heat dissipation; Dense bus ducts are not affected by this
The above is a comparative analysis of dense busbar trunking and air type busbar trunking. It should be said that both have their own advantages and disadvantages, but with the development of insulation technology, the prospects of dense busbar trunking are better, after all, it has greater advantages in installation and maintenance and use in the background.
