在很多时候选择桥架使用比较多的还是槽式桥架，因此在进行选择的时候一定要非常的注意，选用要点都有什么呢？下面小编整理了十点要求大家参考一下。

In many cases, the tray used more is the trough tray, so you must pay great attention to the selection. What are the key points of selection? Here are ten points for your reference.

1）槽式电缆桥架及其支吊架在腐蚀环境中使用，应采用耐腐蚀材料或防腐处理。防腐处理方法应符合环保要求。

1) The trough type cable tray and its supports and hangers shall be made of corrosion-resistant materials or treated with corrosion protection when used in corrosive environment. The anti-corrosion treatment method shall meet the environmental protection requirements.

2）在有防火要求的区段，电缆桥架可在电缆梯和桥架内加装耐火或阻燃板、网等材料，形成封闭或半封闭结构，并采取以下措施：防火层可用于形成封闭或半封闭结构。耐火性应符合有关规定。

2) In sections with fire protection requirements, fire-resistant or flame-retardant plates, nets and other materials can be added to the cable ladder and cable tray to form a closed or semi closed structure, and the following measures can be taken: the fire-proof layer can be used to form a closed or semi closed structure. Fire resistance shall comply with relevant regulations.

3）在防火要求高的地方，不宜使用蓝薄荷金桥。

3) BLUE MINT golden bridge should not be used in places with high fire prevention requirements.

4）槽式电缆桥架的宽度和高度的选择应满足填充率要求。一般情况下，电缆梯和桥架中的填充率，电力电缆应为40%～50%，控制电缆应为50%～70%。，并应预留10%至25%的项目开发津贴。

4) The width and height of trough cable tray shall meet the requirements of filling rate. Generally, the filling rate in cable ladder and bridge shall be 40% - 50% for power cable and 50% - 70% for control cable., And 10% to 25% of the project development allowance should be reserved.

5)选择电缆桥架载荷等级时，电缆桥架的工作均布载荷不应大于所选电缆桥架载荷等级的额定均布载荷。如果电缆桥架支吊架的实际跨度不等于2m，分布荷载应符合要求。

5) When selecting the load grade of cable tray, the working uniform load of cable tray shall not be greater than the rated uniform load of the selected load grade of cable tray. If the actual span of cable tray supports and hangers is not equal to 2m, the distributed load shall meet the requirements.

6）在各种构件和支吊架满足相应载荷的情况下，其规格和尺寸应与托盘和梯架的直段和弯曲系列相匹配。

6) Under the condition that various components and supports and hangers meet the corresponding loads, their specifications and dimensions should match the straight section and bending series of trays and ladders.

7)选择槽式电缆桥架的直通或引出引下装置时，不应小于电缆桥架内电缆的允许弯曲半径。

7) When selecting the straight through or leading out and leading down device of the trough cable tray, it should not be less than the allowable bending radius of the cable in the cable tray.

8)跨度大于6m的钢制电缆桥架和跨度大于2m或承载要求大于D级的铝合金电缆桥架，应根据工程条件计算或验证其强度、刚度和稳定性。

8) The strength, stiffness and stability of steel cable trays with a span greater than 6m and aluminum alloy cable trays with a span greater than 2m or a bearing requirement greater than grade D shall be calculated or verified according to the engineering conditions.

9)当多组电缆桥架平行敷设在同一高度时，应考虑相邻电缆桥架之间的维护和检查距离。

9) When multiple groups of cable trays are laid in parallel at the same height, the maintenance and inspection distance between adjacent cable trays should be considered.

10) 济南电缆桥架厂家认为槽式电缆桥架直通单件的标准长度可以是2、3、4、6m。

10) Jinan cable tray manufacturer believes that the standard length of straight through single piece of trough cable tray can be 2, 3, 4, 6m.

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