The ladder bridge is improved and designed on the original bridge, and it has many advantages, such as light weight, low cost, beautiful appearance, convenient machinery and equipment, good heat removal function, good ventilation performance, etc. Ladder-type bridge is mainly used for laying large-diameter cables and also for laying high-voltage and low-voltage cables. Next, Shandong bridge manufacturer will talk about some precautions when installing ladder bridge.
1. Do a good job of inspection
Before installing the ladder bridge, be sure to check whether the model is correct, whether the product is reliable, whether the product has a certificate of conformity, the middle exposure and relevant identification text documents. And whether there are defects on the surface of the bridge, whether it is smooth and flat, and whether there are bubbles, peeling and ash hanging.
2. Pay attention to the installation position
The position shall be designed in advance during installation, and the height shall not be less than 2.5 meters. The bridge has two layers, which is convenient for heat dissipation. It is necessary to maintain a certain interval to prevent hazards and facilitate quick maintenance. The specific interval should be determined according to relevant regulations.
3. The installation of seismic support is very important
The installation must comply with special signs. If it is vertical spacing, it should not exceed 2 meters. If it is span with fulcrum, it is generally 1.5 meters to 3 meters.
When installing the step-type bridge, we should also note that when the installation or maintenance under engineering conditions does not need to consider the additional concentrated load, the working uniform load of the cable ladder and tray is calculated according to the uniform distribution of the cable dead weight. In addition, it is also suggested that the product should not be laid in parallel with the following pipes. When it cannot be avoided, the position of the cable tray should comply with the following regulations, or we can also take corresponding protective measures.
It should also be noted that when flammable and explosive gases are heavier than air, the ladder bridge should be above the pipe. There will be no problem if we do this well. In addition, when the flammable and explosive gas is lighter than air during installation, it should also be under the pipeline. Of course, it is also recommended that you see relevant standards for a small distance from the pipeline.
As for the installation of ladder bridge, you should master it. It is correct to follow this method. If you can't install it, you can find special personnel to install it. Come to our website for more relevant matters Ask about it!