What material is the fireproof cable tray made of?

1. The side panels of the fire-resistant cotton trough box (fire-resistant bridge) with sandwich structure are drawn and formed by a forming machine, which increases the bending strength of the fire-resistant bridge; The side and bottom plates adopt advanced technology, with a smooth and even surface; The outer surface is sprayed with fireproof paint, which can effectively isolate air and achieve thermal insulation effect; Adding aluminum silicate rock wool and fireproof board on the inner side to prevent heat conduction; The fire-resistant bridge is equipped with a dust cover, supported by special materials. In the event of a fire, the dust cover will fall off and seal all the heat dissipation holes on the cover, achieving the effect of fire prevention; The product complies with fire safety standards.  

2. There is no fire-resistant cotton trough box (fire-resistant bridge), which is mainly composed of fire-resistant board and metal skeleton composite made of glass fiber reinforced material and inorganic adhesive, as well as other fire-resistant substrates. Adopting a steel shell, double-layer fireproof cover plate, and inorganic fireproof groove box inside. The average thickness of the insulation layer is 25mm. The double-layer cover plate is ventilated for heat dissipation, and fireproof coating is sprayed inside. When the fireproof cable tray encounters fire, the coating expands, blocking the heat dissipation holes and protecting the cables inside the trough box The fire resistance performance of the inorganic fireproof trough box has been tested by the fixed fire resistance testing center for 60 minutes, and the cable has no damage The supporting structure is good and can effectively fix the inorganic fireproof groove box, with a frosted surface.