济南电缆桥架安装防护罩是起到保护作用的，减小空气中的某些物质对桥架的腐蚀，延长桥架寿命。

　　Ji'nan cable bridge installation shield is to play a protective role, reduce the corrosion of some of the material in the air to the bridge, prolong the bridge life.

　　①如果是在户外安装大跨距电缆桥架，就一定要在后一层上也就是顶端的一层，加上一次保护罩。

　　If a large span cable bridge is installed outdoors, it must be on the last floor, that is, the top layer, plus a protective cover.

　　②在安装大跨距电缆桥架的时候若是加装有空气过滤器或者是一些带孔的装置时，在上层的电缆桥架应给予充分的保护。

　　When installing a large span cable tray, if the air filter or some holes are installed, the cable bridge at the top should be fully protected.

　　③若是将大跨距电缆桥架安装在一个比较容易受到外界因素影响并损坏的环境中，就需要加上保护罩，以确保其不会受到损伤。

　　If a large span cable bridge is installed in an environment which is easy to be affected by external factors and damaged, it is necessary to add a protective cover to ensure that it will not be damaged.

　　④若是将其安装到建筑工地等粉尘过多的地方，也需要对大跨距电缆桥架安装上保护罩，以免被灰尘侵袭。

　　Fourth, if it is installed in the construction site and other dust excessive places, also need to install a large span cable bridge shield, so as not to be dust invasion.

　　除去需要安装保护罩之外，为了保证大跨距电缆桥架能够发挥出大的功效，在布线时也是需要注意的。

　　Apart from the need to install protective cover, in order to ensure the large span cable bridge can play the most effective, in wiring also need to pay attention to.

　　大跨距山东电缆桥架罩安装的知识

　　Knowledge of large span cable bridge cover installation in Shandong

　　①如果安装场所为具有腐蚀性或者是非常潮湿的环境，那么在布线时就必须要根据腐蚀介质的不同来采取相应的防护措施。

　　If the installation site is corrosive or very humid environment, then the wiring must be based on the different corrosive media to take appropriate protective measures.

　　②若是将几组电缆桥架同时在同一高度进行平整安装的时候，就需要考虑各组电缆桥架之间的维护和检修距离。

　　Second, if several groups of cable bridge are installed at the same height at the same time, it is necessary to consider the maintenance and repair distance between the cable trays of each group.

　　③在大跨距电缆桥架上时可以进行无间距敷设电缆的，电力电缆在桥架内的横断面填充率要在40%以下，而控制电缆则应小于桥架横断面积的一半。

　　(3) in the long span cable bridge, the cable can be laid without distance; the cross section filling ratio of the power cable in the bridge should be below 40%, while the control cable should be less than half of the cross sectional area of the bridge.

　　④安装大跨距电缆桥架的时候不能安装在具有腐蚀性气体管道以及热力管道的上方，在腐蚀性液体管道的下方也不能直接安装电缆桥架，若是必须如此的话则应做好防护和隔热措施。

　　When the installation of large span cable tray is not installed in the upper part of the corrosive gas pipeline and heating pipelines, under corrosive liquids pipeline cannot be directly installed cable tray, so it must be if it should do the protection and insulation measures.

　　本文的精彩内容来自济南电缆桥架详细内容请点击我们的网站:http://www.sdhangfeng.com/谢谢您的到来!

　　The wonderful content of this article is from the Ji'nan cable bridge details, please click on our official website: http://www.sdhangfeng.com/ thank you for coming!