Cable tray is a common tool and equipment used to protect cables. In many projects, due to the lack of understanding of the use of specifications and related knowledge, the effect of equipment is often reduced. So, what are the precautions for using cable tray? Now with the cable tray manufacturers to understand it!
1. The larger load support spacing of XQJ cable tray device should be less than the allowable load and support span.
2. When selecting the width of the bridge, a certain amount of spare space should be reserved for adding cables in the future.
3. When there are few power cables and control cables, they can be installed on the same cable tray, but the power cables and control cables should be separated and separated by partitions.
4. When the cable tray is placed horizontally, the connector between the trays should be set at about 1 / 4 of the span as far as possible. The cables laid horizontally are fixed every 2 meters or so, and the cables laid vertically are fixed every 1.5 meters or so.
5. The cable tray device shall be reliably grounded. If the cable tray is used as the grounding main line, both ends of each layer of cable tray are connected with 16mm2 soft copper wire (in parallel) to connect with the main grounding main line, and the long-distance cable tray is grounded every 30-50m.
6. In addition to the protective cover, the bridge device shall be installed on the top of the protective cover when it is installed outdoors to prevent the sun and rain. For the need of welding and installation, the thickness of the weld around the weldment shall not be less than the thickness of the base metal, and the joint shall be treated with anti-corrosion. Cable filling rate of bridge section: power cable shall not exceed 40%; The control cable should not be more than 50%, and the weak current line can reach 60%.
The above are the preventive measures to be taken in the construction process of cable tray. In addition, when selecting the width of cable tray, a certain spare space should be reserved. The cable tray device should be reliably grounded. When the cable tray device is installed outdoors, in addition to the protective cover, the protective cover should also be installed on the top layer.
Thank you for reading, hope the above content is helpful to you, if you want to know more wonderful information, please click the official website: Jinan cable bridge http://www.sddlqj.cn 。