Key of cable tray construction device

1.電纜橋架及線槽敷設(shè)走向應(yīng)短捷，并應(yīng)盡量沿墻、沿柱或沿梁敷設(shè)。

1. cable bridge and trench laying should be short and quick, and should be laid along the wall, along the column or along the beam.

2.依據(jù)電纜橋架及線槽敷設(shè)走向，向土建、結(jié)構(gòu)提出預(yù)留墻洞、樓板洞及吊架裝置時(shí)，所需預(yù)埋鋼板方位及荷載。而且應(yīng)與工藝、水暖及動(dòng)力相協(xié)調(diào)。

2. According to the laying direction of cable bridge and cable groove, the orientation and load of embedded steel plate for reserving wall holes, floor holes and suspension frames are put forward to civil engineering and structural specialty. And should be coordinated with craft, plumbing and power.

3.地上內(nèi)暗裝金屬線槽布線，在設(shè)計(jì)時(shí)應(yīng)與土建密切配合，以便依據(jù)不同的結(jié)構(gòu)型式和修建布局，合理確定線路途徑和設(shè)備選型。

3. Metal groove wiring on the ground should be closely coordinated with civil engineering specialty in order to rationally determine the route and equipment selection according to different structural types and construction layout.

4.不同電壓、不同用途的電纜不宜敷設(shè)在同一層電纜橋架內(nèi)：

4. cables with different voltages and uses are not suitable for laying in the same cable bridge.

5.1kV以上和1kV及以下的電纜；

Cables above 5.1kV and 1kV and below;

6.同一途徑向一級(jí)負(fù)荷供電的雙回路電纜；

6. double circuit cable supplied to the first level load in the same way;

7.應(yīng)急照明和其他照明的電纜；

7. emergency lighting and other lighting cables.

8.電力、操控和電信電纜。若不同等級(jí)的電纜敷設(shè)在同一電纜橋架時(shí)，中心應(yīng)添加隔板阻隔。

8. power, control and telecommunication cables. If different grades of cables are laid on the same cable tray, the center should be partitions.

9.在工程條件下裝置或檢修不需考慮附加集中荷載時(shí)，電纜梯架、托盤的作業(yè)均布荷載按電纜自重均勻分布核算。

9. When the additional concentrated load is not needed in the installation or maintenance under the engineering condition, the uniform distribution load of cable ladder and tray is calculated according to the uniform distribution of cable deadweight.

10.電纜橋架不宜與下列管道平行敷設(shè)，當(dāng)無法防止時(shí)，電纜橋架的方位應(yīng)契合下列規(guī)定，或采取相應(yīng)防護(hù)辦法。

10. The cable bridge should not be laid in parallel with the following pipes. If it is impossible to prevent, the orientation of the cable bridge should comply with the following provisions or take appropriate protective measures.

11.電纜橋架應(yīng)在具有腐蝕性液體管道上方。

11. the cable tray should be above the corrosive liquid pipe.

12.電纜橋架應(yīng)在熱力管道下方。

12. the cable tray should be under the thermal pipe.

13.易燃易爆氣體比空氣重時(shí)，電纜橋架應(yīng)在管道上方。

13. when the inflammable and explosive gas is heavier than air, the cable tray should be above the pipe.

14.易燃易爆氣體比空氣輕時(shí)，電纜橋架應(yīng)在管道下方。

14. when the flammable and explosive gas is lighter than air, the cable tray should be under the pipe.

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