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How to check the quality of power cable tray installation
Edit:Shan Dongfang Kai Polymer Materials Co., Ltd.   PublicDate:2019-07-29

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    We know that electric energy is the energy source that is commonly used nowadays. It is the foundation of the enterprise. How to identify whether there are quality problems or hidden problems in the process of installing the power cable bridge? You have a few tips.
    1. Look at whether the high-voltage cable and the weak-point cable in the power cable tray are separated. These two cables cannot share one bridge.
    2. The number of cables in the bridge is too large, generally not more than 40% of the power cable and 50% of the control cable.
    3. Look at the cable in the bridge for identification. This is very important.
    4, check the cable's firmness, the cable is not fixed firmly, the latter is not fixed will affect the later use.
    5. Check that the cables are arranged neatly and there is no hinge.
    6. Cable bridges that cannot be made of materials are also different in viewing joints. For example, there is a bridge between the joints of non-galvanized steel plates and bridges. If the connection is poor, the beauty is poor.
    7. Observe that the joint of the bridge is on the inside or the outside, and the inside is not convenient to disassemble. 8. The requirements for the surrounding environment during the installation of the bridge, the bridge and the pipeline should not be too close, such as the proximity of the heating and air conditioning pipes are too unqualified, the standard of the distance from the pipeline is parallel to The pipe is 0. 4 meters and the cross pipe is 0.3 meters.
    9, the bridge bracket spacing is too large, easy to deform and more slings, so there is no fixed bracket, withstand low horizontal force.
    10. Check the bridge and cable for compensation measures across the deformation joint.
    11. According to the material of the cable tray, check whether the bridge, the switchgear, the distribution box, etc. are connected to the grounding, and the number of grounding of the bridge bracket must be more than two; The material of the molecular cable tray itself is insulated, so it is not used for grounding.
    The installation of the power cable tray occupies an important part in the power installation process, and the maintenance is difficult. Therefore, it is required to install the cable tray at the time of installation. After all, the number of years of use is long. It is necessary to take into account the conditions that will be encountered in the next decade or so, take precautionary measures, and popularize preventive measures with workers. The material of the polymer cable tray makes it maintenance-free and has a service life of 5 to 8 times that of the traditional bridge.