Cable tray generally refers to a commodity extended to prevent high-voltage cables. It can prevent high-voltage cables from being harmed and damaged by the external environment and uncertain factors on the premise of normal power operation, and then ensure the integrity of power consumption and power supply system.
The cable tray is composed of support frame, supporting arm and machine equipment accessories. The cable bridge can be installed independently in the house, the industrial equipment can be laid on the house buildings and fixed supports of various houses, and all spare parts can be treated according to hot galvanizing. The industrial equipment has a very good practical effect of anti-corrosion in the house and outdoors.
Cable tray specification selection
1. The total width and aspect ratio of composite epoxy resin cable tray shall be selected according to the table, and the actual charging rate of the cable shall not exceed the standard value of relevant technical standards. 40-50% for power cables and 50-70% for frequency conversion cables. In addition, 10-25% of the formula development trend capacity should be retained.
2. Various types of bending and assembly specifications shall comply with the project layout standards and be compatible with the bridge.
3. The selection of support and support specifications shall be carried out in accordance with bridge specifications, number of covering layers, span and other standards. The provisions of load shall be considered.
4. The selection of the cross-sectional area of the bridge is shown in the table. The rated voltage value or the whole time constant (a) of the larger automatic overcurrent prevention of any route in the high-voltage cable Internet on the bridge (mm2)
The model of cable tray is:
1. High voltage cable bridge is mainly a support point and a support frame for storing high voltage cables. It is widely used in engineering projects. Generally, high-voltage cable is necessary, so cable bridge has become necessary, which has great effect in building construction.
2. Tray type cable tray is widely used in crude oil, chemical plants, light industry, communication equipment and other aspects. It has the advantages of light weight, large load, beautiful design, simple structure and convenient installation. Tray type cable tray is mainly used for the installation of power cable and the laying of frequency conversion cable.
3. Ladder type cable tray. The ladder type cable tray is designed according to the relevant materials all over the world. It has the advantages of light weight, low cost, convenient modeling design and installation, heat removal and good air permeability. The key is to lay high-voltage cables with large diameter, which is suitable for the laying of high and bottom pressure power cables.
4. Trough type cable tray. Trough type cable tray is a fully enclosed cable tray. It is suitable for laying computer cables, power cables, thermal resistance high-voltage cables and frequency conversion cables of other high-precision system software. The key is to shield off the influence of frequency conversion cable and prevent the environmental high-voltage cable in re etching.
The above is the detailed introduction of Jinan cable bridge, which I hope will be helpful to you If you have any questions, please contact us We will provide service for you with our attitude http://www.sdhangfeng.com