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The type of cable tray mainly depends on the weight of the cable and the use environment and other factors, and the following provides us with some commonly used cable tray types on the market as a reference:
Trough cable tray: A trough cable tray is a hermetically sealed cable tray, box-like shape, used to lay cables.
Ladder cable tray: It looks like a ladder shape together, and the center is welded with a crossbar to reinforce the support, which makes it light weight, low cost, extremely strong bearing capacity and good air permeability.
Tray cable tray: Traybed cable tray is a semi-sealed cable tray, which is very similar to the posture of trough cable tray, and it has a hole in the bottom for heat dissipation.
The following is a guide to the commonly used standards in the market
The standard is suitable for: trough tray (C), ladder tray (T), tray tray (P) (special standards can be customized by contact).
Thickness: non-standard) national standard).
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Selection of cable tray type and variety:
1. When the cable network that needs to be shielded from electrical interference or has the requirement of protecting the external (such as corrosive liquid, combustible dust and other environments), the (FB) trough composite anti-corrosion shielded cable tray (with cover) should be selected
2.In highly corrosive environments, (F) composite epoxy resin anti-corrosion and flame-retardant cable trays should be used. The same material should be used for the bracket and bracket to improve the service life of the tray and accessories, and the cable tray. In the environment or outdoor places that are prone to dust accumulation and other needs to be covered, it is advisable to add a cover.
3. In addition to the above conditions, tray type, trough type, stepped type, glass anti-corrosion flame retardant cable tray or steel ordinary cable tray can be selected according to the environmental and technical requirements of the site. In the environment or outdoor places that are prone to dust accumulation and other needs to be covered, it is advisable to add a cover.
4. In the public passage or outdoor crossing road section, the bottom of the bottom step should be added with a backing plate or a tray should be used in the section. When the large span spans the public passage, the load capacity of the bridge can be increased according to the user's requirements or the row frame can be selected.
5. Composite bridge (FB) should be selected for large span (>3m).
6. Composite epoxy resin bridge (F) should be used outdoors.
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This mainly depends on the fact that you live in **. Now the market of cable tray is developing rapidly, there are many cable tray manufacturers in China, and the brand of cable tray has increased a lot, but the quality difference is very large, so it is recommended to screen carefully.
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In fact, there are not many brand electric bridge factories, but the quality index must be passed, and there may be a good brand with a supervision certificate.
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First understand whether the cable tray manufacturer has the production capacity, whether it can provide samples, product inspection reports, product certificates, and so on.
We will need to count the quantity, width, height and material of the purchased cable tray and other parameters, so that the cable tray manufacturers can provide accurate **. Because these parameters are not counted, cable tray manufacturers are unable to give, raw materials fluctuate greatly, specifications are many, and different materials will affect the cable tray.
It is necessary to carefully build the process of the material tray, and there should be no distortion, black spots, rust, paint loss and other phenomena on the surface. If conditions permit, you can go to the site to inspect the scale and supply capacity of the partner's factory.
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Is there a good cable tray nearby? Where is the manufacturer? You can go to that building materials city and you'll have it.
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There are still some good electrical boxes nearby, and there are still some bridges, but you still need to look for this carefully, because sometimes you can't see it from the appearance, the key depends on his technical level?
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Where are you near me to know what are the cable tray manufacturers near you?
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There are a lot of good cable tray manufacturers nearby, and I will help you take a look at your location.
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You can call 114 to inquire about the ** of several cable factories.
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There is a professional cable tray brand ranking on this network, you can choose to take a look.
When purchasing cable trays, you must pay attention to the following requirements: >>>More
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When the cable tray is installed indoors, in order to ensure that the cable tray is straight and beautiful, neat and consistent, its horizontal load deformation should generally be controlled. According to the size of the load deformation in the horizontal direction of the selected cable tray and the required bridge in the horizontal direction, check the bridge load characteristic curve of the corresponding structural form, and when the deformation requirement cannot be met, the side height of the bridge frame can be appropriately increased or the support spacing can be reduced, so as to meet the requirements. >>>More
How much is a meter of bridge is not calculated, but the seller has a ** for different specifications and materials of bridge. What you have to consider is whether the bridge he gives you meets your requirements, such as thickness, material, whether it has a cover plate, whether it meets the fire protection requirements, whether it is equipped with screws, ground wire braided copper belt, support and hanger and other issues. Finally, I can say **.
Selection of cable tray type and variety:
1. When the cable network that needs to be shielded from electrical interference or has the requirement of protecting the external (such as corrosive liquid, combustible dust and other environments), the (FB) trough composite anti-corrosion shielded cable tray (with cover) should be selected >>>More