Key of cable tray construction device

1.电缆桥架及线槽敷设走向应短捷，并应尽量沿墙、沿柱或沿梁敷设。

1. cable bridge and trench laying should be short and quick, and should be laid along the wall, along the column or along the beam.

2.依据电缆桥架及线槽敷设走向，向土建、结构提出预留墙洞、楼板洞及吊架装置时，所需预埋钢板方位及荷载。而且应与工艺、水暖及动力相协调。

2. According to the laying direction of cable bridge and cable groove, the orientation and load of embedded steel plate for reserving wall holes, floor holes and suspension frames are put forward to civil engineering and structural specialty. And should be coordinated with craft, plumbing and power.

3.地上内暗装金属线槽布线，在设计时应与土建密切配合，以便依据不同的结构型式和修建布局，合理确定线路途径和设备选型。

3. Metal groove wiring on the ground should be closely coordinated with civil engineering specialty in order to rationally determine the route and equipment selection according to different structural types and construction layout.

4.不同电压、不同用途的电缆不宜敷设在同一层电缆桥架内：

4. cables with different voltages and uses are not suitable for laying in the same cable bridge.

5.1kV以上和1kV及以下的电缆；

Cables above 5.1kV and 1kV and below;

6.同一途径向一级负荷供电的双回路电缆；

6. double circuit cable supplied to the first level load in the same way;

7.应急照明和其他照明的电缆；

7. emergency lighting and other lighting cables.

8.电力、操控和电信电缆。若不同等级的电缆敷设在同一电缆桥架时，中心应添加隔板阻隔。

8. power, control and telecommunication cables. If different grades of cables are laid on the same cable tray, the center should be partitions.

9.在工程条件下装置或检修不需考虑附加集中荷载时，电缆梯架、托盘的作业均布荷载按电缆自重均匀分布核算。

9. When the additional concentrated load is not needed in the installation or maintenance under the engineering condition, the uniform distribution load of cable ladder and tray is calculated according to the uniform distribution of cable deadweight.

10.电缆桥架不宜与下列管道平行敷设，当无法防止时，电缆桥架的方位应契合下列规定，或采取相应防护办法。

10. The cable bridge should not be laid in parallel with the following pipes. If it is impossible to prevent, the orientation of the cable bridge should comply with the following provisions or take appropriate protective measures.

11.电缆桥架应在具有腐蚀性液体管道上方。

11. the cable tray should be above the corrosive liquid pipe.

12.电缆桥架应在热力管道下方。

12. the cable tray should be under the thermal pipe.

13.易燃易爆气体比空气重时，电缆桥架应在管道上方。

13. when the inflammable and explosive gas is heavier than air, the cable tray should be above the pipe.

14.易燃易爆气体比空气轻时，电缆桥架应在管道下方。

14. when the flammable and explosive gas is lighter than air, the cable tray should be under the pipe.

济南航丰实业有限公司,对山东电缆桥架感兴趣的朋友可以关注我们http://www.sdhangfeng.com，敬请期待更多精彩内容

Jinan Hangfeng Industry Co., Ltd., friends interested in Shandong cable bridge can pay attention to our http://wwwsdhangfengcom, please look forward to more exciting content