Professional Cable Tray Manufacturer

In fact, the most important premise of the implementation and installation of cable tray is choice. How to select high-quality products and select suitable bridges when selecting cable tray will be of great help to the later use. So what are the details that we should pay attention to when choosing cable tray? 
Please take a look at the following 10 items summarized for you: 
1. When the Cable tray supplier is laid horizontally, the height from the ground is generally not less than 2.5m, and when vertically laid, the part below 1.8m from the ground should be protected by a metal cover, except when it is laid in an electrical special room. 
If the cable tray is laid horizontally on the equipment interlayer or the upper horse track and is less than 2.5m, protective grounding measures should be taken. 
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2. In the engineering design, the layout of the cable tray should be comprehensively compared according to the economic rationality, technical feasibility, operation safety and other factors to determine the best scheme, but also fully meet the requirements of construction and installation, maintenance and maintenance and cable laying. 
3. Cable trays, slots and their supports and hangers should be made of corrosion-resistant rigid materials when used in corrosive environment. 
Or adopt anti-corrosion treatment, anti-corrosion treatment should meet the requirements of engineering environment and durability. 
For places with high corrosion resistance or clean requirements, aluminum alloy cable tray should be selected. 
4. When the cable bridge is in the section with fire prevention requirements, fire-resistant or non-flammable plates, nets and other materials can be added to the cable ladder and tray to form a closed or semi-closed structure, and measures such as fireproof coating shall be applied on the surface of the bridge and its supports and hangers. 
Its overall fire resistance should meet the requirements of relevant national codes or standards. 
In the place where the fire prevention requirements of the project are higher. 
It is not suitable to use aluminum alloy cable tray. 
5. Cable lines that need to be shielded from electromagnetic interference. 
Or there are protective external shadows, such as outdoor sunshine, oil, corrosive liquids, flammable dust and other environmental requirements. 
Non-hole tray type Cable tray supplier should be selected. 
6. In places where dust is easy to accumulate, cable trays should use covers; cross road sections in public passageways or outdoors. 
Cushion plates or non-hole pallets should be added on the bottom bridge. 
7. The selection of the width and height of the cable ladder and tray should meet the requirements of the filling rate. In general, the filling rate of the cable in the ladder and tray is 40% 50% for power cable and 50% for control cable. 
70%. 
And it is appropriate to reserve a margin of 10%-252 project development. 
8. When selecting the load grade of the cable tray, the working uniformly distributed load of the cable tray should not be greater than the rated uniformly distributed load of the selected cable tray, if the actual span of the support and hanger of the cable tray is not equal to 2m. 
9. Cables of different voltages and different uses should not be laid in the same layer of cable tray: 
(1) cables above 1kV and below 1kV: 
(2) double-circuit cables supplying power to the first-stage load on the same path. 
(3) cables for emergency lighting and other lighting: 
(4) Power, control and telecommunications cables. 
If different grades of cables are laid in the same cable tray, partition isolation should be added in the middle. 
10. When the straight line length of steel cable tray is more than 30m and that of aluminum alloy cable tray is more than 15m. 
Or when the cable tray passes through the building expansion (settlement) joint, there should be an O-30mm compensation margin. 
The telescopic connection plate should be used for the connection. 
The parameters given above are the most suitable for the use of modern cable tray, and they are also the most basic product requirements that cable tray manufacturers should meet. If you have no experience in purchasing and choosing cable tray, it is recommended that you take a careful look at the summary of this article, or call to consult us about your use, to provide you with the most accurate guidance!