1. When the cable network that needs to be shielded from electrical interference or has the requirements of protecting the outside (such as: corrosive liquid, flammable dust, etc.) .
2. The type (F) composite epoxy resin anti-corrosion and flame-retardant cable tray should be used in strong corrosive environment. The support arm and bracket should also use the same material to improve the service life of the bridge and its accessories, and the cable bridge. Covers should be added in environments or outdoor places that are prone to dust accumulation and other need to be covered.
3. In addition to the above conditions, tray type, trough type, cascade type, glass anti-corrosion flame retardant cable tray or steel ordinary type tray can be selected according to the site environment and technical requirements. Covers should be added in environments or outdoor places that are prone to dust accumulation and other need to be covered.
4. In public passages or outdoor crossing road sections, pads should be added to the bottom of the bottom steps or trays should be used in this section. When the large span spans the public passage, the load capacity of the bridge frame can be increased or the row frame can be selected according to the user's requirements.
5. For large spans (>3m), composite bridges (FB) should be used.
6. Use composite epoxy resin bridge (F) for outdoor use.
