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Trunking length considerations for dense busbars

Compared with the traditional wire and cable paving method, the dense bus wire slot has many prominent advantages. Such as small size, compact structure, small footprint; large transmission current, can be very easily according to the bus slot plug-in power switch box out of the switching power supply support system; high-quality raw material selection, superb design, high mechanical and electrical engineering characteristics, excellent chassis grounding device, safety factor and stability. Therefore, it is widely used in the world of high-rise residential and high-rise residential industrial building distribution room on the main line. Dense bus threading is not as casual as the air bus duct leading out of the supporting power circuit, but it has excellent flame retardancy.

Be sure to accurately measure the pavement specifications of dense busbar wire trunking on the spot, and the length of the wire trunking must be installed very accurately. The height-width ratio of the busway plug-in power switch box is clear according to the design scheme. When laying fire safety power distribution equipment wire slot in narrow indoor space, flame retardant structure should be selected, and the thickness of protective layer should not be less than 30mm. When the application of open building paint, metal material pipeline or metal bridge should be applied fireproof building paint maintenance, because the metal material pipeline and metal bridge does not have fire safety. When applying non-flame retardant insulation and sheathed cables, do not apply metal hoses and metal material tanks in the hoistway for maintenance. However, when the pipeline crosses the bottom plate of the elevator shaft, it must cross the plate tube and the concave groove to protect the equipment, and the gap between the upper and lower concave grooves of the pipeline should also be sealed and protected.

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