Trough cable tray is a fully enclosed cable tray shielded cable interference and can protect the cable in heavy corrosion environment. The advantages include light structure, low cost, simple construction, flexible wiring, standard installation, and beautiful appearance. Generally, they can be erected independently in the interior of a building, or they can be attached to various buildings and pipe racks. Therefore, according to the geographical environment or installation Different environments, the choice of cable tray is also targeted. However, the specific conditions of each type of trough bridge are different. Next we come to understand the price of the trough bridge and related introduction.
Trough Bridge Introduction
The shield of the trough cable tray is supplied with the tank body, and the other accessories are common with the ladder type and tray type bridge. If you need other types of trough cable trays, please contact us by drawing or ordering.
Trough Bridge Specifications
Trough bridge specifications can be customized according to customer requirements 100x50,150x75,200x100,250x125,300x150,100x200,500x200,600x200,800x200mm.
Tray bridge weight
Tray bridge weight = 200*100 bridge total length multiplied by 1.2 thickness 200*100 bridge theoretical weight.
Trough bridge configuration
1, the indoor branch, hanging short span generally take 1.5-3m. The mid-span of the outdoor column is generally 6m.
2. The following principles are followed in the configuration of the non-linear section support and hanger. When the width of the bridge is 300mm, in addition to the following conditions, a branch and hanger shall be added in the middle of the non-linear section.
3. When the bridge is installed in multiple layers, the center distance between layers is 200, 250, 300, 350mm.
4. The bridge section should be left with expansion joint 20-30mm (metal bridge) every 50m straight line section.
Trough bridge fire
The fireproof section of the bridge must be made of steel or non-flammable and fire-retardant materials. The BAQJ series cable bridges produced by our company have fireproof bridge series.
Groove bridge grounding
1, the bridge system should have a reliable electrical connection and ground (only metal bridge).
2. The following requirements shall be met when the use of the bridge system to form a grounded mains loop is permitted. The connection resistance between the ends of the bridge should not be greater than 0.00033 ohms, and the grounding hole should be clear of the insulating coating. In a system with a direct neutral point of 1KV and below, the ground of the powered device is connected to the neutral ground of the system. When the equipment is installed to shut off the power supply, the cross-sectional area of ​​the bridge in the longitudinal direction shall not be less than the specified value.
3. When laying another grounding trunk along the full length of the bridge, each section (including non-straight section) of the bridge should be reliably connected to the grounding trunk at least one point.
4. For the vibration site, the spring ring should be installed at the connection of the grounding site.
Trough Bridge Offer
Shanghai Zhenda Electric Appliances Co., Ltd.
Trough Bridge Specifications 600*150
Batch size: 100 meters
Price: about 140 yuan
Shanghai Gequan Mechanical and Electrical Co., Ltd
Supply 200*100*1.0 trough bridge ladder tray tray bridge
Price: 30 yuan
Anhui Tianya Electric Co., Ltd.
Specializing in the production of XQJ-C-3A horizontal three-way hot-dip galvanized trough bridge
Price: 20 yuan
Shanghai Hao Ben Industrial Co., Ltd.
Production of customized alloy plastic bridge trough cable tray
Price: 15 yuan
Yangzhou Dabing Electric Appliance Co., Ltd.
Aluminum alloy cable tray, aluminum alloy trough bridge
Price: 90 yuan
Note: This price is for reference only! Due to geographical differences, of course, the price will be different. For more details on the prices, please refer to the local distributors!
Difference between trough bridge and tray bridge
Difference between trough bridge and tray bridge
Trough cable bridge It is a fully enclosed type of cable bridge, this type of cable bridge is more suitable for the laying of computer cables, letter cables and thermocouple cables and other high sensitive system control cables.
The tray type cable tray is a kind of cable tray which is widely used in petrochemical industry, television telecommunication and so on, and it is not only suitable for the installation of power type cables, it is also suitable for the control cable laying. So in this respect, the tray type cable has a wider application area than the slot type cable, and the slot type cable is mainly applicable to the laying of a small but large number of wires and cables, and the tray type cable tray. It is mainly used for laying large but small number of power cables.
Difference between trough bridge and tray bridge II: Comparison of features
Trough cable tray This kind of cable tray has very good effect on the shielding interference of the control cable. In addition, it also provides very good protection effect to the cables in the corrosive environment.
The tray-type cable tray has a lighter weight, a higher load capacity, and a better appearance than the trough. In addition, the tray bridge has a simple structure and is very convenient and quick to install. However, the treatment of the surface of the tray type cable tray is divided into two kinds of treatment methods, namely crossing and painting. Therefore, in the case of some corrosive environments, special anti-corrosion treatment is required.
Difference between trough bridge and tray bridge three: heat dissipation
The trough bridge is of the closed type. It has no holes, so the heat dissipation performance of the trough bridge is much worse. The bottom of the tray-type bridge is a lot of waist-shaped holes, so its heat dissipation performance is much better.
Editor's summary: We must choose different cable trays according to the geographical environment or the installation environment. For example, in the open-air bridge outside the building, we must choose the bridge with anti-corrosion and moisture-resistant function, so that we can protect the cable and prevent corrosion. , extend the service life of the bridge and reduce the number of maintenance. Different trough bridges, the material is also different, outdoor installation should use composite epoxy resin finger bridge and so on.
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