When we choose tray cable tray, it is not blind, we have to choose according to the actual situation, and There are some points in the selection. 1. First, before the choice, we need to determine the specific environment where the tray cable tray will be used. Whether it is high temperature or corrosive, watery or windy, these environments The specific types of tray cable trays we use are also different. 2. Tray type cable trays can be enclosed or semi-finished in the ladder ladder and tray with materials such as plates and nets with fire-resistant or flame-retardant properties. The closed structure adopts measures such as applying fireproof coating on the surface of the tray type cable tray and its support and hanger, and its overall fire resistance performance should meet the requirements of relevant codes or standards.
    3. In places where engineering fire protection requirements are high, aluminum alloy cable trays should not be used.
    4. When selecting the bending or guiding or lowering device of the tray type cable tray, it should not be less than the allowable bending radius of the cable in the tray type cable tray. 5. For steel tray cable trays with spans greater than 6 m and aluminum alloy cable trays with spans greater than 2 m or with load requirements greater than load class D, the strength shall be according to engineering conditions. Calculation or test verification of stiffness and stability. 6. There is also a need to select the load level of the tray type cable tray, and its working uniform load cannot be greater than the rated uniform load of the selected bridge load level.
    7. The width and height of the tray cable tray should meet the filling rate requirements.
    8. When several sets of different bridges are laid in parallel at the same height, a certain distance must be left to ensure normal maintenance and maintenance.
    The various components and hangers shall be sized to match the straight section of the pallet, the ladder frame, and the curved series under the conditions of the corresponding load.
    9. When several sets of tray-type cable trays are laid in parallel at the same height, maintenance and inspection distances should be considered between adjacent cable trays.
    These are some of the points we need to be aware of when choosing a tray cable tray. Note that these are better for use.