Totally-enclosed fireproof flame-retardant bus duct

Abstract

The invention discloses a totally-enclosed fireproof flame-retardant bus duct which comprises a totally-enclosed box body, a damping rod, a cover plate, a first protective layer, a second protective layer, a third protective layer, a fourth protective layer, a fifth protective layer, a support frame and a bottom plate. Sliding grooves are carved in a bottom end of a side wall and an inner side ofa top end of the box body. The bottom plate and the cover plate are inserted into an upper end and a lower end of the box body; the damping rod is arranged between the cover plate and the bottom plate; the support frame is arranged in the middle of the box body; the first protective layer and the fifth protective layer are arranged at an upper end and a lower end of the support frame, the second protective layer and the fourth protective layer are arranged on the two sides of the supporting frame, and the third protective layers are arranged in the support frame and are distributed at equal intervals. The totally-enclosed fireproof flame-retardant bus duct device has the advantages of reasonable structure, shock absorption and noise reduction.

Description

technical field [0001] The invention belongs to the technical field of electric equipment, and in particular relates to a fully enclosed fire-proof and flame-retardant bus duct. Background technique [0002] The busway is a busbar system composed of metal plates as protective shells, conductive bars, insulating materials and related accessories. It is a large current transmission device used for power supply lead-out circuits. Applied to low-voltage, high-current power distribution systems; such as the main power supply lines used in buildings, the terminal power distribution main lines of data centers, and the main power supply lines of factories, etc. Among them, especially the busway in high-rise buildings needs to provide power for fire-fighting equipment and cannot be powered off, so it needs a certain fire resistance. However, the fire resistance of the existing busway is poor, because the insulating frame in the lineway will carbonize the insulating material and lose...

AI Technical Summary

Problems solved by technology

However, the fire resistance of the existing busway is poor, because the insulating frame in the lineway will carbonize the insulating material and lose its structural strength under high temperature, such as when the busway is overloaded or due to fire, and then loses the effective support and isolation of the conductive row. A short-circuit power failure occurred; secondly, because the existing bus duct is basically a steel shell, it is easy to produce extrusion friction noise with the installation position due to its own cold and heat shrinkage or external vibration after installation. The busway in the factory, such as the air bell in the foundry factory, will produce strong vibrations, which may cause the connection between the busway to become loose and not firmly fixed.

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