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.

　　电缆桥架的荷载分为静荷载、动荷载和附加荷载。静荷载是指敷设在电缆桥架内的电缆种类、根数、每根的外径重量/单位长度，按电缆敷设的不同路由分别列表统计。动荷载是指电缆桥架安装和维护过程中施工维修人员的重量。对于轻型电缆桥架，一般不考虑动荷载，即不允许在桥架上站人或行人，如果需要考虑站人，则应将跨距适当缩小。附加荷载仅在室外是指冰雪、风和电磁力所形成的荷载，它与安装场所的地区自然气象条件和带电体的性质有关，设计中应根据各种条件加以计算。

　　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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