Professional Cable Tray Manufacturer

Shandong Hongfeng Electric Group Co., Ltd.

The products can be widely used in construction, energy, power, plant.

What are the fireproof spraying techniques for cable tray and the standard thickness of the coating?

Release time:

2023-12-06

According to the material, the cable tray is divided into steel, aluminum alloy and stainless steel.

According to the material, the cable tray is divided into steel, aluminum alloy and stainless steel.
The surface treatment of cable tray products include cold galvanizing, hot galvanizing, plastic spraying, fireproof paint, baking paint, etc., according to the use of the part, the cable tray is divided into bridge main body, accessories, spare parts and support hanger.
Below, the editor of the cable tray of Beijing Weiye will introduce the fireproof spraying technology and the standard thickness of the coating.
The installation of the cable tray should be based on the electrical construction drawings and the trend of the cable tray should be measured, and it is suitable to use standard products and factory prefabricated parts.
The segment of the cable tray should be reasonable, and the connection position of the two segments should not be placed through the wall and across the floor hole.
The cable bridge needs a cover plate in the indoor and outdoor environment where it is easy to accumulate dust, flammable dust or sun protection, and ridges and drainage holes should be drilled in the outdoor environment where it often rains, so as to prevent the cable bridge from accumulating water after entering water.
Fireproof cable tray is divided into three fire resistance grades NI~NIII, the time to maintain the normal operation of cable NI is 1 hour, NII is 45 minutes, NIII is 30 minutes, the above is the fire resistance time standard of fireproof cable tray.
When laying fireproof cable tray and thermal pipe without thermal insulation horizontally, the parallel spacing shall be at least 1000mm, the minimum spacing for cross laying shall be 500mm, the minimum distance for cross laying between fireproof cable tray and thermal pipe with thermal insulation measures shall be 300mm, and the distance for horizontal laying shall be at least 500mm.
The fireproof spraying technology of cable bridge includes spraying fireproof paint and spraying fireproof thermosetting powder. According to the requirements of the bridge tray standard for the fireproof protective layer, the standard thickness of the coating should be greater than or equal to 60um.
If the technical standard specification for the bridge project specifies the coating thickness, spray and acceptance shall be carried out in accordance with the specified standard thickness.

Keywords：

Does the steel cable tray have a cover by default?

Does the long-span cable tray need a partition?

Does the steel cable tray have a cover by default?

Does the long-span cable tray need a partition?