Precautions for cable tray installation:

1、桥架的总平面布置要做到到间隔短，经济实惠合理化，运作，并应达到施工安装，检修和铺设电缆线的规定。

1. The general layout of the bridge should be short, economical, reasonable and safe, and should meet the requirements of construction, installation, maintenance and cable laying.

2、桥架具备充足的弯曲刚度和抗压强度，对电缆线给予可靠的支撑。

2. The bridge has sufficient bending stiffness and compressive strength to provide safe and reliable support for cables.

3、电缆敷设后，桥架的挠度应不得超过桥架跨距的1/200，当桥架的跨距≥6000毫米时，其挠度应不得超过桥架的跨距的1/150。

3. After cable laying, the deflection of the bridge shall not exceed 1/200 of the span of the bridge. When the span of the bridge is ≥ 6000 mm, the deflection shall not exceed 1/150 of the span of the bridge.

4、桥架应尽量在建、建筑物(如墙、柱、梁、楼板等)上安装，与土建工程紧密配合。

4. The bridge shall be installed on the buildings (such as walls, columns, beams, floors, etc.) under construction, and closely cooperate with the civil engineering discipline.

5、桥架与制作工艺管道支架共架安装时，桥架应摆放在管道支架的一侧。

5. When the bridge is installed together with the manufacturing process pipe support, the bridge should be placed on one side of the pipe support.

6、桥架与各种各样管道平行面搭建时，其净间隔应达到以下规定：

6. When the bridge is built parallel to various pipelines, the net spacing shall meet the following requirements:

（1）桥架与一般制作工艺管道(如压缩空气管道等)平行面搭建时不小于400毫米。

(1) When the bridge is built parallel to the general manufacturing process pipes (such as compressed air pipes, etc.), it shall not be less than 400mm.

（2）桥架与有腐蚀性液体管道平行面搭建时不小于500毫米。

(2) When the bridge is built parallel to the corrosive liquid pipeline, it shall not be less than 500mm.

（3）桥架不适合在输送有腐蚀性液体管道的下方或有腐蚀性气体管道上方平行面安装。当不能防止时，应不小于500毫米。且其间应用防腐隔板隔开。

(3) The bridge is not suitable to be installed in parallel below the pipeline transporting corrosive liquid or above the pipeline transporting corrosive gas. When it cannot be prevented, it shall not be less than 500 mm. And it shall be separated by anti-corrosion partition.

（4）桥架与供热管道平行面搭建，供热管道有隔热材料时不小于500毫米，无隔热材料时不小于1000毫米。

(4) The bridge shall be built parallel to the heat supply pipeline. When the heat supply pipeline has thermal insulation material, it shall not be less than 500mm, and when there is no thermal insulation material, it shall not be less than 1000mm.

（5）桥架不适合在供热管道的上方平行面安装，当不能防止需在供热管道上方平行面安装时，应不小于1000毫米，其间应采取有效的隔热具体措施。

(5) The bridge is not suitable for installation on the parallel surface above the heat supply pipe. When it cannot be prevented from being installed on the parallel surface above the heat supply pipe, it should not be less than 1000mm, and effective heat insulation measures should be taken in between.

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The above is a detailed introduction of Shandong cable bridge for you. I hope it can help you. If you have any questions, please contact us. We will provide services for you with a professional attitude http://www.sdhangfeng.com