电缆桥架的安装布线可以沿顶板安装、沿墙水平和垂直安装、沿竖井安装，也可以沿地面、电缆沟及管道支架安装。我们该如何选择布线方式，金属线槽布线和电缆桥架布线又有什么不同？下面 济南电缆桥架厂家为您分析：

The cable tray can be installed along the roof, horizontally and vertically along the wall, along the shaft, and along the ground, cable trench and pipe support. How do we choose the wiring method? What is the difference between metal trunking wiring and cable tray wiring? Jinan cable bridge manufacturer will analyze for you:

金属线槽布线

Metal trunking wiring

（1）金属线槽布线搬适用于正常环境的室内干燥和不易受机械损伤的场所明敷，但对金属线槽有严重腐蚀的场所不应采用。

(1) The metal trunking wiring is suitable for outdoor laying in dry indoor places and places not vulnerable to mechanical damage in normal environment, but it should not be used in places with serious corrosion to the metal trunking.

（2）同一回路的所有相线和中性线，应敷设在同一金属线槽内。同一路径无防干扰要求的线路，可敷设于同一金属线槽内，线槽内电线或电缆的总截面（包括外护层）不应超过线槽内截面的20％，载流导线不宜超过30根。控制、信号或与其相类似的线路，电线或电缆的总截向下应超过线槽内截面的50％，电线或电缆根数下限。

(2) All phase and neutral wires of the same circuit shall be laid in the same metal trunking. Lines with no anti-interference requirements in the same path can be laid in the same metal trunking. The total cross-section of wires or cables in the trunking (including the outer protective layer) should not exceed 20% of the cross-section in the trunking, and the number of current-carrying conductors should not exceed 30. For control, signal or similar lines, the total cross section of wires or cables shall exceed 50% of the cross section in the trunking, and the lower limit of the number of wires or cables.

（3）金属线槽垂直或倾斜安装时，应采取措施防止电线或电缆在线槽内移动。

(3) When the metal trunking is installed vertically or obliquely, measures shall be taken to prevent wires or cables from moving in the trunking.

（4）由金属线槽引出的线路，可采用金属管，硬质塑料管、半硬塑料管、金属软管或电缆等布线方式。电线或电缆在引出部分不得遭受损伤。

(4) The lines led from the metal trunking can be routed by metal pipes, rigid plastic pipes, semi-rigid plastic pipes, metal hoses or cables. The wire or cable shall not be damaged at the outgoing part.

（5）线糟应平整、无扭曲变形，内壁应光滑、无毛刺。

(5) The wiring duct shall be flat without distortion and deformation, and the inner wall shall be smooth without burr.

（6）金属线槽应可靠接地或接零，但不应作为设备的接地导体。

(6) Metal trunking shall be reliably grounded or connected to neutral, but shall not be used as the grounding conductor of equipment.

电缆桥架布线

Cable tray routing

（1）在室内采用电缆桥架布线时，其电缆不应有黄麻或其他易延燃材料外护层。

(1) When the cable tray is used for indoor wiring, the cable shall not have jute or other combustible materials.

（2）在有腐蚀或特别湿润的场所采用电缆桥架布线时，应根据腐蚀介质的不同采取相应的防护措施，并宜选用塑料护套电缆。

(2) When cable tray is used for wiring in corrosive or especially wet places, corresponding protective measures shall be taken according to different corrosive media, and plastic sheathed cables shall be selected.

（3）电缆桥架（托盘）水平安装时的距地高度一般不宜低于2．50m，垂直安装时距地1．80m以下部分应加金属盖板保护，但敷设在电气专用房间（如配电室，电气竖井、技术层等）内时除外。

(3) The height of cable tray (tray) from the ground should not be less than 2.50m when installed horizontally, and the part below 1.80m from the ground should be protected by metal cover plate when installed vertically, except when it is laid in special electrical rooms (such as distribution room, electrical shaft, technical floor, etc.).

（4）电缆桥架水平安装时，宜按荷载曲线选取佳跨距进行支撑，跨距一般为1．5～3m。垂直敷设时，其固定点间距不宜大于2m。

(4) When the cable tray is installed horizontally, the best span should be selected according to the load curve for support, and the span is generally 1.5~3m. When laying vertically, the spacing between fixed points should not be greater than 2m.

（5）几组电缆桥架在同一高度平行安装时，各相邻电缆桥架间应考虑维护、检验间隔。

(5) When several groups of cable trays are installed in parallel at the same height, the maintenance and inspection interval between adjacent cable trays shall be considered.

（6）在电缆桥架上可以无间距敷设电缆，电缆在桥架内横断面的填充率：电力电缆不应大于40％；控制电缆不应大于50％。

(6) The cable can be laid on the cable tray without spacing, and the filling rate of the cross section of the cable in the tray: the power cable should not be greater than 40%; The control cable shall not be more than 50%.

（7）下列不同电压，不同用途的电缆，不宜敷设在同一层桥架上：

(7) The following cables with different voltages and different purposes should not be laid on the same bridge:

lkV以上和1kV以下的电缆。

Cables above 1kV and below 1kV.

同一路径向一级负荷供电的双路电源电缆。

Two-way power cable supplying power to primary load in the same path.

应急照明和其他照明的电缆。

Cables for emergency lighting and other lighting.

强电和弱电电缆。

Strong and weak current cables.

电缆桥架布线和金属线槽布线有何不同？以上就是该问题的解答了，您对此有怎样的疑惑或者需求，就来我们网站 //www.comprepyme.com咨询了解吧！

What is the difference between cable tray wiring and metal trunking wiring? The above is the answer to this question. If you have any doubts or needs about it, please come to our website //www.comprepyme.com Ask about it!