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Shandong Eastern Kaikai Polymer Materials Co., Ltd.
Contact: Manager ChenContact number: 15069307777
0533-3184888Address: Processing Support Zone of Bonded Logistics Center of Zibo High-tech Zone

Combined cable tray
Combined cable tray

Combined cable tray is a new type of bridge that is the second generation in the cable tray series. It is applicable to the laying of various projects, various units and various cables. It has the characteristics of simple structure, flexible configuration, convenient installation and novel form. As long as the combination bridge adopts three basic types of widths of 100, 150 and 200mm, it can form the cable tray of your required size. It can be arbitrarily turned, widened and divided according to the on-site installation without the need to produce bends, tees and other accessories. Lead up and down. In any part, no need to punch holes, welding can be taken out by the tube. It is convenient for engineering design, convenient for production and transportation, and more convenient.

    Combined cable tray is a new type of bridge that is the second generation in the cable tray series. It is applicable to the laying of various projects, various units and various cables. It has the characteristics of simple structure, flexible configuration, convenient installation and novel form.
    As long as the combination cable trays are available in three base types of 100, 150, and 200 mm, you can form a cable tray of the size you need. It does not need to produce accessories such as bends and tees. It can be arbitrarily turned, widened, divided, and taken down according to the site installation. In any part, no need to punch holes, welding can be taken out by the tube. It is convenient for engineering design, convenient for production and transportation, and more convenient for installation and construction. It is the most ideal product in the current cable tray.
    Combination of bridge selection
    1. In engineering design, the layout of the bridge should be based on economic rationality, technical feasibility, operational safety and other factors. Comprehensive comparison to determine the best solution, but also to fully meet the requirements of construction and installation, maintenance and repair and cable laying.
    2. When the bridge is laid horizontally, the height from the ground is generally not less than 2. 5m. When laying vertically, the part below the ground of 1.8m should be protected by metal cover, but laid on the electrical Except when in a dedicated room. The cable tray is laid horizontally on the equipment mezzanine or the upper man's road and is less than 2.5m. Protective grounding measures should be taken.
    3. Bridges, trunkings and their hangers are used in corrosive environments and should be made of corrosion-resistant rigid materials. Or take anti-corrosion treatment, anti-corrosion treatment should meet the requirements of the environment and durability. For places where corrosion resistance is required or where cleaning is required, aluminum alloy cable trays should be used. 4. In the section with fire protection requirements, the bridge can be added with refractory or flame retardant plates in the cable ladder and tray. The mesh and other materials form a closed or semi-closed structure. And take it at
    5. Cable lines that need to shield electromagnetic interference. Or protective external shadows such as outdoor sunshine, oil, corrosive liquids, flammable dust and other environmental requirements. A non-porous tray cable tray should be used.
    6. In places where dust is easy to accumulate, the cable tray should be covered with a cover; cross the road section in public passage or outdoor. A pad or a non-porous tray should be used on the bottom bridge.
    7. Cables of different voltages and different purposes should not be laid in the same layer of cable tray:
    (1) Cables above 1kV and below 1kV: (2) Double-circuit cable that supplies the same load to the primary load;
    (3) Cable for emergency lighting and other lighting:
    (4) Power, control and telecommunications cables.
    If different grades of cables are laid on the same cable tray, spacer isolation should be added in the middle.
    8. When the length of the steel straight section exceeds 30m, the aluminum alloy cable tray exceeds 15m. Or when the cable tray passes through the expansion and contraction (sedimentation) of the building, there should be an O-30mm compensation margin. The connection should use a telescopic connecting plate. 9. The choice of cable ladder and tray width and height should meet the filling rate requirement. The filling rate of the cable in the ladder frame and the tray is generally 40%-50. %, control
    The cable can take 50%. 70%. It is advisable to reserve l0%-252 engineering development margin.
    10. When selecting the load level of the cable tray, if the support of the cable tray is not equal to 2m. Then the work uniform load should meet:
    where qG work uniform load, kN/m;
    qE rated uniform Load, kN/m;
    LG - actual span, m.