As we all know, cable tray is a kind of cable laying device which can make the laying of wire, cable and pipe reach standardization, serialization and generalization. So, today, let's talk about how to choose cable tray.

一、电缆桥架类型和品种的选择

1、 Selection of cable tray type and variety

1.用于需要屏蔽电气干扰的电缆网络，或用于保护免受外部影响(如腐蚀性液体、易燃灰尘等)的要求时。应选用(FB)型槽式复合防腐屏蔽电缆桥架(带盖)。

1. It is used for cable network which needs to shield electrical interference, or when it is required to protect from external influence (such as corrosive liquid, flammable dust, etc.). (FB) trough type composite anti-corrosion shielding cable tray (with cover) shall be selected.

2.对于强腐蚀性环境(F)类复合环氧树脂防腐阻燃型电缆桥架。支撑臂和支架应使用相同的材料，以提高桥梁和附件电缆桥框架的使用寿命。在容易积灰和其它需遮盖的环境或户外场所宜加盖板。

2. For strong corrosive environment (f) type composite epoxy resin anticorrosive flame retardant cable tray. Support arms and supports shall be of the same material to improve the service life of the bridge and accessory cable bridge frames. Cover plate should be added in the environment or outdoor places that are easy to accumulate dust and need to be covered.

3.除上述情况外，还可根据现场环境和技术要求选择托盘式、槽式、台阶式、玻璃防腐阻燃电缆桥框架或钢制普通型桥架。在容易积灰和其它需遮盖的环境或户外场所宜加盖板。

3. In addition to the above situation, tray type, trough type, step type, glass anti-corrosion and flame retardant cable bridge frame or steel ordinary bridge can be selected according to the site environment and technical requirements. Cover plate should be added in the environment or outdoor places that are easy to accumulate dust and need to be covered.

4.在公共通道或室外交叉路段，底层梯级的底部宜加垫板或在该段使用托盘。当大跨度跨越公共通道时，可根据用户要求提高桥梁的承载能力或选择行架。

4. In the public passage or outdoor cross section, the bottom of the bottom step should be added with a pad or pallet should be used in this section. When the large span spans the public passage, the bearing capacity of the bridge can be improved or the trestle can be selected according to the user's requirements.

5、大跨距(>3m)要选用复合型桥架(FB)。

5. Composite bridge (FB) should be selected for long span (> 3M).

6、室外选用复合环氧树脂树桥架(F)。

6. Composite epoxy resin tree bridge (f) is selected for outdoor use.

二、规格选择

2、 Specification selection

1.桥梁的宽度和高度应根据下表选择，并应符合相关标准和规范的要求。动力电缆可取40-50%，控制电缆可取50-70%，另外需予留10-25%的式程发展余量。

1. The width and height of the bridge shall be selected according to the table below, and shall meet the requirements of relevant standards and specifications. 40-50% for power cable and 50-70% for control cable. In addition, 10-25% process development allowance is required.

2、各种弯曲和附件的规格应符合工程布置条件并与桥梁相匹配。

2. The specifications of various bending and accessories shall meet the engineering layout conditions and match with the bridge.

3.支、吊架的规格应根据桥梁的规格、层数、跨度等条件选择。并应满足负荷的要求。

3. The specifications of supports and hangers shall be selected according to the specifications, layers, span and other conditions of the bridge. And it should meet the requirements of load.

   以上是关于如何选择电缆桥架的一些内容，希望能给你一些帮助。当然，除了知道如何选择电缆桥机架外，电缆桥机架的安装也非常重要。想了解更多电缆架的朋友可以关注我们网站上的更新信息。

The above is about how to choose some content of cable tray, hope to give you some help. Of course, in addition to knowing how to select the cable bridge rack, the installation of the cable bridge rack is also very important. If you want to know more about cable rack, you can pay attention to the updated information on our website.