文章來源：電纜橋架 作者：電纜橋架廠家 發布時間：2023-04-27 10:44:27 瀏覽次數：
As we all know, when we build the cable tray in Jinan, in most cases, we will encounter relatively complex working areas in some special places, most of which are corrosive environments, normal environments, and special environments. According to the majority of cable routing. You can start along the walls, beams, and floors indoors. Try to follow the process pipeline as much as possible outdoors.
Calculate the weight q and total load G of the unit length cable on the section of the electric tiger bridge direction, based on the cable load and the environment where the bridge is installed. Based on the load curve of the bridge, determine the type and specifications of the bridge, including the same distance between columns, the length of the support arm, the hierarchy of the bridge, and the length of the columns. Determine the fixing method of the cable tray based on the direction of the cable and the installation environment: hanging type, upright type, (both forms can be single fixed or double fixed). Airside type, etc.
The weak current control cable is located on the upper layer, followed by the general control cable. Low voltage power cables. The high-voltage power cables are arranged in the following order: the following table is beneficial for shielding interference, ventilation, heat dissipation, etc. When the group setting method of the bridge is suspended and the supporting arm is a single multi-layer installation. In order to balance the force on the column. Symmetrical street load mode shall be adopted and cable tray shall be set. Long span cable tray can be selected for the cable with large span.
Protective covers should be used for cable bridges in areas prone to external mechanical damage. When cable trays or lattice ladders require special branching, various elbow connections can be used. The anti-corrosion of cable tray is mainly plastic spraying. Yifeng is specialized. Electrogalvanizing is applicable to light anti-corrosion areas, and hot dip galvanizing is applicable to heavy anti-corrosion areas. The thickness of hot dip cable tray needs to be increased by more than 5. mn. The support spacing of cable tray shall be less than the allowable support span. There should be a fixed spare space for the width. In order to increase electricity consumption in the future.
When there are fewer power cable control cables, they can be installed on a cable rack. But in China, power cables and control cables should be separated by a partition. Cable tray is set for horizontal data. The connection head of the bridge should be set at 14 points of the span as much as possible. The cables in this horizontal direction are fixed every 2m. Draw a straight cable with a length of 1.5m and fix it once.
The cable tray shall be reliably grounded. If it is a trunk line, the end of the cable tray shall be connected in parallel with a soft wire (with a plate area of 16m), and it shall be connected to the general grounding. The cable tray of Changou shall be grounded once every 30 to 50m. During welding and installation, the four wire boundary of the weldment shall not be less than the storage of the base metal, and anti-corrosion treatment shall be added.