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.

　　電纜橋架的荷載分為靜荷載、動荷載和附加荷載。靜荷載是指敷設在電纜橋架內(nèi)的電纜種類、根數(shù)、每根的外徑重量/單位長度，按電纜敷設的不同路由分別列表統(tǒng)計。動荷載是指電纜橋架安裝和維護過程中施工維修人員的重量。對于輕型電纜橋架，一般不考慮動荷載，即不允許在橋架上站人或行人，如果需要考慮站人，則應將跨距適當縮小。附加荷載僅在室外是指冰雪、風和電磁力所形成的荷載，它與安裝場所的地區(qū)自然氣象條件和帶電體的性質(zhì)有關，設計中應根據(jù)各種條件加以計算。

　　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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