The installation principle of the cable rack of the communication tower
The installation and path of the outdoor cable frame climbing ladder of the communication tower must be installed in accordance with the requirements of the drawing. If there is no requirement in the drawing or if it is difficult to install according to the requirements of the drawing, a reasonable path should be selected, and the designer and the project management personnel of the construction unit must be communicated and agreed. It can be installed later, and the changed drawings must be reflected on the construction plan to facilitate the design change drawings.
The cable rack is directly connected from the cable tower to the cable inlet of the machine room. Use 4 expansion bolts to install a piece of ∠5～∠7 fixed iron with the same width as the cable rack 20cm below the cable inlet. A fixed iron is also installed on the guyed tower.
Make the cable rack low on the tower side and high on the computer room side to prevent rainwater from entering the equipment room. The cable rack is placed on the fixed irons at both ends. If it is a color steel computer room, use the support frame to support the cable rack. The length of the cable rack exceeds 3 Rice.
Install a pair of support frames every 3 meters; the communication tower line frame should be welded to the feeder lightning protection belt, and the welding point must be above the line frame. If there are grounding steel bars on the roof, the two ends of the line frame must be connected to the grounding grid. welding.
Weld the wire rack with the grounding grid every 12 meters; the wire rack should minimize turning, the turning angle is not less than 90°, and each bolt should be checked and tightened after all installations.
