Many places in our life use electricity, so there are more and more cables and more cable trays. It is understood that in the process of installing cable tray, we often encounter the situation that some sites need to install cover plates, but what is the specific situation?
If the cable tray is installed outdoors, the protective cover must be installed on the top layer or each layer. If the installation site is vulnerable to mechanical damage or dusty environment, or where there are special requirements, a protective cover must be installed. The cable bridge must be installed under the iron plate with holes or similar devices, and the upper bridge must be equipped with a protective cover; If the width of the upper tray is less than that of the lower tray, the lower tray must be equipped with a protective cover; When the cable tray is installed vertically, the protective cover must be installed within two meters from the ground.
The bridge cover should be used where dust is easy to accumulate. The tray tray and non perforated tray tray used for laying control cables and signal cables shall be provided with cover plates, which can play a shielding role. And for aesthetic effect. The cable tray cover is the shielding cover outside the cable tray, which is used to protect the laying personnel of power or other communication cables.
In addition, the precautions for installing the bridge should also be understood:
When the bridge is transported to the construction site, it is necessary to submit the factory certificate, provincial and municipal quality supervision report, technical appraisal documents and other relevant materials.
Shandong cable bridge is a wiring project without the guidance of professionals. Under the product specifications, the production methods of many manufacturers are different, and the lack of universality is a major disadvantage. In the design and selection, it is necessary to reasonably select the accessories to be used according to the requirements of the project.
When the cable tray and power cable tray are used together, the power cable and weak current cable need to be installed separately, and the middle needs to be separated by a partition.
When the weak current cable and low voltage cable are used together, the weak current cable with shielding function should be selected
If the outdoor cable tray enters the building, its slope shall not be less than 1 / 100, and when crossing with electrical equipment, it shall not be less than 0.5m clear distance.
The starting point, turning point, branch point, lifting point and end point of the bridge frame shall be drawn on the parallel diagram. Coordinate points and dimensions shall be accurately identified. Draw the laying shaft side diagram of the bridge, which can make the budget statistics of materials more accurate.
Cable trays are very important and need to be properly protected to avoid danger. For relevant preventive measures or safety precautions, you can pay attention to our website www.sddlqj.com Cn to understand!