Air busway application

Air busway. Because the joint between the busbars is soft-bonded with copper, the current collector is wet in the south, and the joints are prone to oxidation. The joints are in poor contact with the busbars, making the contacts easy to heat, so they are rarely used in the south. And the volume between the joints is too large, the horizontal busbar sections are inconsistent in size, and the shape is not beautiful.

Dense insulation plugs into the busway. The dense insulated busway is a compact sandwich structure. The busbar is made of high-quality electrolytic copper containing more than 99.95% copper. After the new process, the jacket is made of high-quality insulating material, which has good flame retardant and good insulation performance. Its moisture and heat dissipation effects are poor. In terms of moisture protection, the busbar is susceptible to moisture and water seepage during construction, resulting in a decrease in insulation resistance between the phase collectors. The heat dissipation of the busbar mainly depends on the outer casing. Due to the compact arrangement between the wires and the wires, the heat energy of the L2 and L3 phases is slowly dissipated, and the temperature rise of the busbar slots is formed to be high. Dense insulated plug-in busbars are limited by the outer panel and can only produce horizontal sections of no more than 3m. Due to the small air gap between the busbars, when the busbar passes a large current, it generates strong electric power, which causes the magnetic oscillation frequency to form a superimposed state, causing excessive noise.

High-strength enclosed busway. The process is not limited by the plate, and the outer casing is made into a wrap form, which increases the mechanical strength of the busbar, and the horizontal section of the busbar can be produced up to 13m long. Since the outer casing is made in the form of a ditch, the position of the pit is intentionally separated and fixed, and there is a distance of 18 mm between the busbars. The ventilation between the line collectors is good, so that the moisture-proof and heat-dissipating functions of the busway are obviously improved, and the southerly climate is more suitable; Since there is a certain gap between the wires, the temperature rise of the wires is lowered, which improves the overload capability and reduces the magnetic oscillation noise. However, it produces stray currents and inductive reactances that are much larger than dense busbars, so its conductive strip sections must be larger than dense insulated plug-in busbars when compared to the same specifications.

The plug-in busway is a trunk-type system, which has the advantages of small size, compact structure, reliable operation, large transmission current, convenient tapping and feeding, convenient maintenance, low energy consumption, good dynamic thermal stability, etc. widely used. Plug-in busbar (busbar plug-in box) special function, can arrange two sockets within one meter length, such as two sockets to reach four sockets without affecting the busbar support strength.