Fireproof trough cable trays protect cables

Fireproof trough cable trays protect cables

In the engineering design documents usually general fireproof trough cable tray called cable trough, did not point out the specific structural features, different types, different production materials of fireproof cable containment price difference is large, and the confusion of the type of structure will bring the work site heat dissipation, mechanical protection problems. Therefore, in the design phase, designers should be required to reasonably select the structural characteristics of the fire-proof cable trays according to the environmental characteristics and technical requirements of the project, and clearly expressed in the type label and material table of the floor plan.

2. Fireproof cable tray material selection

The material of fire-proof  cable containment is another common problem of fire-proof cable channel engineering design. According to the material division, there are mainly steel, glass fiber reinforced plastic and aluminum alloy fire-proof cable bridges. FRP fire-proof channel cable tray is characterized by light weight, the specific gravity is only 1/4 of carbon steel; good water resistance and corrosion resistance, suitable for chemical plants.

3. Fireproof cable trays surface corrosion protection layer category selection

The third common problem in the engineering design is that the fire-proof cable tray model is not marked with the category of anti-corrosion layer, and there is no unified text description. This problem has a lesson in reality, such as our country undertakes general contracting of a project in Indonesia, the surface corrosion treatment of steel fire-proof cable trough without salt spray test, soon after completion of the cable tray rusted quite seriously and had to be replaced.