Speaking of Jinan cable bridge, many people should be familiar with it. Cable bridge is widely used in our life. Do you know what is the key point of cable bridge passing through the wall? What are the installation precautions? Take you to understand, hope to help you!
1. The cable tray passes through the wall from all normal natural environment to enter the fire-proof and explosion-proof natural environment, and the wall shall be installed with corresponding sealing equipment.
2. When the cable bridge enters the outdoor from the room through the wall, waterproof and rainproof measures shall be taken on both sides of the wall.
3. When the cable tray is installed from the wall in the room to a higher outdoor height, the cable tray shall be inclined to increase the appropriate distance, and then the lap joint shall be carried out to meet the installation standard. In addition, precipitation shall be avoided and cable trays shall be injected into the room.
4. When the cable bridge passes through the expansion deformation joint, the cable bridge shall be broken. The distance between cables shall be 100 mm
Equipment key points and FAQs
1. In addition to shield installation shield, cable cabinet equipment shall be installed in outdoor environment. The top of cover shall be modified to avoid sun, because if you want to install and weld, the welding thickness shall not be less than the surrounding butt weld welding part and the solution of weld corrosion.
2. The distance between large load supporting points of cable bridge equipment for assembling bridge series products shall be less than the allowable load and the distance between supporting points.
3. When selecting the total width of cable bridge, a certain reserved position shall be reserved for the convenience of adding cables in the future
4. When there are less wires and cables and frequency conversion cables, they can be installed on the same cable bridge, but the wires and cables shall be laid separately from frequency conversion cables in the middle.
5. When the cable tray is laid horizontally, the connector in the middle of the cable tray shall be set at the upper and lower 1 / 4 of the span as far as possible. The horizontal cable is fixed at the upper and lower parts of the span every two meters, and the vertical cable is fixed at the upper and lower parts of the span every 1.5 meters.
6. The cable bridge equipment shall have reliable grounding device. If the cable tray is the main ground wire, 16mm2 soft copper core wire (Series) shall be connected at the top of each layer of cable tray and communicate with the main ground wire. The grounding device shall be set every 30-50m for long-distance cable tray.
The above is the key points of Jinan cable bridge through the wall and installation points. I believe that through the introduction of this article, you can have a certain understanding of this bridge, and hope that the above content can help you. In addition, if you want to know more about it, you can pay more attention to our website!