With the development of society, the application of cable tray is more and more widely, but do you know the rules of cable tray wiring? Today, let's get to know.

電纜橋架的布線規則是什么？

What are the routing rules of cable tray?

1.在室內采用電纜橋架布線時，電纜不應有黃麻或其他易燃材料作為外護套。

1. When the cable tray is used for indoor wiring, the cable shall not have jute or other flammable materials as the outer sheath.

2.電纜橋架水平安裝時，應根據支撐荷載曲線選擇合適的跨度，跨度一般為1.5 ~ 3m。垂直敷設時，固定點間距不大于2m。

2. When the cable tray is installed horizontally, the appropriate span should be selected according to the support load curve, and the span is generally 1.5 ~ 3M. When laying vertically, the distance between fixed points shall not be more than 2m.

3.在有腐蝕或非常潮濕的地方采用電纜橋架布線時，應根據不同的腐蝕介質采取相應的防護措施，并適當選擇塑料護套電纜。

3. When cable tray is used for wiring in places with corrosion or special humidity, corresponding protective measures shall be taken according to different corrosive media, and plastic sheathed cables shall be selected appropriately.

4.當幾組電纜橋機架平行安裝在同一高度時，應考慮相鄰電纜橋機架之間的維護和檢修距離。

4. When several groups of cable bridge frames are installed in parallel at the same height, the maintenance and overhaul distance between adjacent cable bridge frames should be considered.

5.電纜可以無間距地敷設在電纜橋機架上。橋架橫截面電纜填充率：電力電纜不應超過百分之40;控制電纜不應大于50。

5. The cable can be laid on the cable bridge frame without space. Cable filling rate of bridge cross section: power cable shall not exceed 40%; The control cable shall not be greater than 50.
                   

6.電纜橋架(托盤)水平安裝高度一般不應小于2.50米，垂直安裝距離地面1.80米以下部分應加金屬蓋板保護，但敷設在電氣專用房間(如配電室、電氣豎井、技術層等)內時除外。

6. The horizontal installation height of cable tray (tray) shall not be less than 2.50M, and the vertical installation distance below 1.80m from the ground shall be protected by metal cover plate, except when it is laid in the special electrical room (such as distribution room, electrical shaft, technical floor, etc.).

7.電纜橋架不應安裝在腐蝕性氣體管道和熱力管道上方和腐蝕性液體管道下方，否則應采取防腐和隔熱措施。

7. The cable tray shall not be installed above the corrosive gas pipeline and heat pipeline and below the corrosive liquid pipeline, otherwise, the anti-corrosion and heat insulation measures shall be taken.

8.下列不同電壓、不同用途的電纜不應敷設在同一層橋架上：

8. The following cables with different voltages and different uses shall not be laid on the same layer of cable tray:

1)應急照明和其他照明用電纜。

1) Cables for emergency lighting and other lighting.

2)lkV以上和1kV以下的電纜。

2) Cables above 1kV and below 1KV.

3)雙向電力電纜，用于向同一路徑的主負載供電。

3) Two way power cable is used to supply power to the main load in the same path.

4)強弱電電纜。如果因情況需要安裝在同一層橋機架上，應使用隔板隔開。

4) Strong and weak current cables. If it needs to be installed on the same floor of the bridge frame due to the situation, it should be separated by partition.

9.電纜橋架與各種管道平行或交叉時，凈距應符合表DQ4-1的規定。

9. When the cable tray is parallel or crossed with various pipelines, the clear distance shall meet the requirements of table dq4-1.

10.電纜橋框架穿過防火墻和防火樓層時，應采取防火隔離措施。

10. When the cable bridge frame passes through the fire wall and fire floor, fire isolation measures shall be taken.

11.電纜橋架中的電纜應在頭端、尾端、轉彎處，每隔50m，無編號、型號、起止點等。

11. The cables in the cable tray shall be at the head end, tail end and turning point, with no number, model, starting and ending point, etc. every 50m.

12.電纜橋架電纜應固定在下列部位。垂直敷設時，電纜的上端和每隔1.50 ~ 2m。水平敷設時電纜的首、尾兩端、轉彎及每隔5～10m處。

12. The cable tray cable shall be fixed at the following parts. When laying vertically, the upper end of the cable and every 1.50 ~ 2m. When the cable is laid horizontally, the two ends of the head and tail, the turn and every 5-10m.

本文由山東電纜橋架廠家整理提供，希望對大家有所幫助，如想了解更多精彩內容請點擊官網：http://www.ymmgjx.net。

This article is provided by Shandong cable bridge manufacturer. I hope it will be helpful to you. If you want to know more wonderful content, please click the official website: http://www.ymmgjx.net .