電纜穿橋架或管道的區(qū)分應(yīng)該嚴(yán)格按照?qǐng)D紙?jiān)O(shè)計(jì)說明做，施工時(shí)可能會(huì)因?yàn)檫@個(gè)地方的電纜穿橋架，無論是在隱患、施工程序等方面都好，例如：多層及高層電氣井道內(nèi)電纜為穿橋架敷設(shè)，因?yàn)殡娎|多，橋架明裝，出問題了也好維修，并且性價(jià)比還高；有些只需要一根電纜的線路基本都是穿管道，因?yàn)闃蚣芟鄬?duì)于管道來說，一是無管道安裝省時(shí)省力，二是有些地方管道可能會(huì)做暗裝。

The distinction between cables passing through bridges or pipelines should be made in strict accordance with the design instructions of the drawings. During construction, it may be because of the cables passing through bridges in this place, whether in terms of safety hazards, construction procedures, etc. For example, the cables in multi-storey and high-rise electrical hoistways are laid through bridges, because there are many cables, the bridges are exposed, and it is easy to repair in case of problems, and the cost performance is also high; Some lines that only need one cable basically go through the pipe, because the bridge, relative to the pipe, is time-saving and labor-saving for pipeless installation, and the pipe may be concealed in some places.

此外濟(jì)南電纜橋架安裝環(huán)境不同，要求不同。不同的安裝環(huán)境，安裝橋架需要接地措施。那么，哪些環(huán)境安裝橋架需要接地呢?哪些環(huán)境安裝橋架不需要接地呢?

In addition, the installation environment of Jinan cable bridge is different and the requirements are different. Different installation environments require grounding measures to install the bridge. So, which environments need to be grounded when installing the bridge? Which environments do not require grounding to install the bridge?

1.普通環(huán)境安裝橋架不需要做接地;

1. Grounding is not required for bridge installation in common environment;

2.爆炸危險(xiǎn)環(huán)境需要接地，因?yàn)殪o電的原因，發(fā)生釋放靜電火花達(dá)到爆炸臨界值，會(huì)發(fā)生危險(xiǎn)。所以這種環(huán)境下安裝橋架需要做接地措施;

2. The explosion hazardous environment needs to be grounded. Because of the static electricity, the electrostatic discharge sparks reach the explosion critical value, which will cause danger. Therefore, it is necessary to take grounding measures when installing the bridge in this environment;

3.玻璃鋼電纜橋架其表面處理可作鍍鋅或者靜電噴塑或者熱鍍鋅處理，這樣方便接地;

3. The surface treatment of glass fiber reinforced plastic cable tray can be galvanized or electrostatic spraying or hot galvanizing, which is convenient for grounding;

4.橋架的首末兩端須作接地，橋架連接部分做跨接。

4. Both ends of the bridge shall be grounded, and the bridge connection part shall be bridged.

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