< p="">    In addition to the need to install a protective cover, in order to ensure that the corrosion cable tray can play a greater role, it is also necessary to pay attention when wiring.
    1. If the installation site is corrosive or very humid, the corresponding protective measures must be taken according to the different corrosive media during wiring.
    2. If several sets of anti-corrosion cable trays are installed at the same height at the same time, it is necessary to consider the maintenance and maintenance distance between each group of cable trays. 3. If the cable is laid without gaps on the anti-corrosion cable tray, the cross-section filling rate of the power cable in the bridge should be less than 40%, and the control cable should be smaller than the bridge cross-section. Half of the area. 4. When installing the anti-corrosion cable tray, it cannot be installed above the corrosive gas pipeline and the heat pipeline. Under the corrosive liquid pipeline, the cable bridge cannot be directly installed. If this is the case, Protective and thermal insulation measures should be taken.
    can be used in telecommunications, radio and television departments, indoors and outdoors. However, accessories have always been divided on the definition of various accessories, so the relevant departments announced the standard definition in the early stage to standardize the entire cable tray market. It is also important to purchase bridge fittings, which are to be purchased with high quality and pressure resistance. The general accessories are: three links, curved head, different diameters, screws, button holes, support arms, arms, crossbars, connectors, grounding wires, etc. Common electrical accessories for bridge accessories include cable junction boxes, indirect junction boxes in cables, connection junction boxes and junction boxes, steel plate slots, cable trays, and more.
    For vibration points, the spring ring should be installed at the grounding point. The connection resistance at both ends of the bridge shall not exceed 0.00033 ohms, and the grounding holes shall be removed from the insulating coating.
    In a direct grounding system below 1 kV and neutral, the ground of the receiving device is connected to the ground of the system neutral, and the power supply is cut off and installed.