Fire-resistant trough cable tray is made by surface-treating galvanized trough cable trays and spraying a layer of fire-resistant coating. Some also adopt double-layer sandwich or internally attached fire-resistant board structures. It can block the spread of fire during a blaze, protect cable safety, and is widely used in fire protection projects such as power, telecommunications, subways, and chemical industries.

The fire-resistant performance utilizes high-quality fire-resistant coatings or materials. When exposed to fire, the coating expands, blocking heat dissipation holes and forming an insulating layer, effectively delaying the temperature rise of cables inside the tray, allowing the cables to maintain normal working performance for a certain period.

- Excellent protective performance: Fully sealed structure, providing 360-degree protection for cables, preventing damage from dust, moisture, corrosive gases, and external forces. It features dustproof, waterproof, corrosion-resistant, and impact-resistant properties.

- Aesthetic and customizable appearance: The surface can undergo various treatments, and colors can be customized according to customer requirements, matching different building environments while enhancing the overall aesthetics of the wiring.

Product Structure

- Steel shell: Generally made of high-quality cold-rolled steel plate, formed through mechanical processing, offering high strength and rigidity to withstand cable weight and external pressure.

- Fire-resistant coating: Composed of polymer synthetic resin as the film-forming substance, with added flame retardants, foaming agents, etc. It expands and foams under high temperatures, forming a carbonized insulating layer.

- Double-layer fire-resistant cover plate: Some fire-resistant trough cable trays are equipped with double-layer cover plates, which provide ventilation and heat dissipation while effectively blocking flames and heat from entering the trough box in case of fire.

- Inorganic fire-resistant trough box: Equipped with an inorganic fire-resistant trough box inside, offering excellent fire-resistant performance. Professional fire resistance tests ensure that cables remain undamaged within a specified time.