濟(jì)南電纜橋架安裝防護(hù)罩是起到保護(hù)作用的，減小空氣中的某些物質(zhì)對(duì)橋架的腐蝕，延長(zhǎng)橋架壽命。

　　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如果是在戶(hù)外安裝大跨距電纜橋架，就一定要在后一層上也就是頂端的一層，加上一次保護(hù)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.

　?、谠诎惭b大跨距電纜橋架的時(shí)候若是加裝有空氣過(guò)濾器或者是一些帶孔的裝置時(shí)，在上層的電纜橋架應(yīng)給予充分的保護(hù)。

　　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若是將大跨距電纜橋架安裝在一個(gè)比較容易受到外界因素影響并損壞的環(huán)境中，就需要加上保護(hù)罩，以確保其不會(huì)受到損傷。

　　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若是將其安裝到建筑工地等粉塵過(guò)多的地方，也需要對(duì)大跨距電纜橋架安裝上保護(hù)罩，以免被灰塵侵襲。

　　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.

　　除去需要安裝保護(hù)罩之外，為了保證大跨距電纜橋架能夠發(fā)揮出大的功效，在布線(xiàn)時(shí)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.

　　大跨距山東電纜橋架罩安裝的知識(shí)

　　Knowledge of large span cable bridge cover installation in Shandong

　?、偃绻惭b場(chǎng)所為具有腐蝕性或者是非常潮濕的環(huán)境，那么在布線(xiàn)時(shí)就必須要根據(jù)腐蝕介質(zhì)的不同來(lái)采取相應(yīng)的防護(hù)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.

　?、谌羰菍捉M電纜橋架同時(shí)在同一高度進(jìn)行平整安裝的時(shí)候，就需要考慮各組電纜橋架之間的維護(hù)和檢修距離。

　　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在大跨距電纜橋架上時(shí)可以進(jìn)行無(wú)間距敷設(shè)電纜的，電力電纜在橋架內(nèi)的橫斷面填充率要在40%以下，而控制電纜則應(yīng)小于橋架橫斷面積的一半。

　　(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.

　?、馨惭b大跨距電纜橋架的時(shí)候不能安裝在具有腐蝕性氣體管道以及熱力管道的上方，在腐蝕性液體管道的下方也不能直接安裝電纜橋架，若是必須如此的話(huà)則應(yīng)做好防護(hù)和隔熱措施。

　　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.

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