The cable tray is divided into trough, tray type and ladder type structure, and is composed of a bracket, bracket and installation accessories etc. The products are widely used in petroleum, chemical, metallurgy, electric power, communication, tunnel, train stations, airports, shopping malls, government agencies and other fields of construction, the product has the advantages of beautiful appearance, strong corrosion resistance, easy installation etc.
The load of cable tray is divided into static load, dynamic load and additional load. Static load refers to the cable in the cable tray type, root number, root weight per unit length / diameter, according to the different route of cable laying are tabulated statistics. Dynamic load refers to the cable tray installation and maintenance personnel in the process of construction and maintenance of weight. For light cable tray, generally do not consider the dynamic load, which is not allowed to stand on the bridge or pedestrian, if need to consider to stand, it should be appropriate to narrow the span. The additional load only refers to the load which is formed by ice, snow and electromagnetic force, which is related to the natural meteorological conditions and the nature of the charged body in the place of installation.
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