桥架的结构类型包括槽式、托盘式、梯式和网格式等。槽式桥架主体结构由无孔托盘和无孔盖板组成，托盘式桥架主体结构由有孔托盘和有孔盖板组成。梯式桥架主体结构由侧板和横档组成。以下为相关知识，供您参考。

The structural types of cable trays include trough, tray, ladder, and mesh formats. The main structure of the trough type bridge is composed of non perforated trays and non perforated cover plates, while the main structure of the tray type bridge is composed of perforated trays and perforated cover plates. The main structure of the ladder style bridge is composed of side panels and crossbars. The following is relevant knowledge for your reference.

1、槽式桥架

1. Trough bridge

槽式电缆桥架敷设支、吊架时，应该使用挂线或弹线找直，使用水平尺来找平，以保证安装以后，能够横平竖直。槽式电缆桥架敷设采用丝杆等圆钢时，型材的直径不得<=10mm，并应控制丝杆的长度不宜过长，否则会容易产生晃动，影响槽式电缆桥架敷设的稳定性。

When laying supports and hangers on cable trays, hanging wires or snap wires should be used to straighten them, and a level ruler should be used to level them to ensure that they can be installed horizontally and vertically. When laying trough cable trays using round steel such as lead screws, the diameter of the profile should not be less than or equal to 10mm, and the length of the lead screw should be controlled not to be too long, otherwise it will easily cause shaking and affect the stability of the trough cable tray laying.

槽式桥架

Trough bridge

2、托盘式桥架

2. Tray type bridge

托盘式电缆桥架与一般工艺管道平行铺设时，敷设间隔少400mm，与工艺管道交叉敷设时，安装间距小为300mm，托盘式电缆桥架与腐蚀气体管道的平行间距少为500mm，交叉间距小为500mm。客户根据承载力的需要选择用哪种材质。一般托盘式电缆桥架宽度400mm以下选用扁钢外支架，托盘式电缆桥架宽度400mm以上选用角钢外支架。

When the tray type cable tray is laid parallel to the general process pipeline, the laying interval should be at least 400mm. When it is laid cross with the process pipeline, the installation interval should be at least 300mm. The parallel interval between the tray type cable tray and the corrosive gas pipeline should be at least 500mm, and the minimum crossing interval should be 500mm. Customers can choose which material to use according to their bearing capacity needs. Flat steel external supports are generally used for tray type cable trays with a width of less than 400mm, while angle steel external supports are used for tray type cable trays with a width of more than 400mm.

托盘式桥架

Tray type bridge

3、梯式桥架

3. Ladder style bridge

梯式电缆桥架垂直弯通包括：垂直凸弯通（也称上垂直弯通）、垂直凹弯通（也称下垂直弯通）、上垂直三通、下垂直三通、上边垂直三通、下边垂直三通、左下角垂直三通、右下角垂直三通、垂直四通、上边垂直四通等梯式电缆桥架宽度和高度的尺寸偏差应该在GB/T 1804-2000中V级的规定范围内，其中要注意的是，梯式电缆桥架盖板的宽度要取正偏差，槽体或梯架的宽度要去负偏差。

The vertical bends of ladder cable trays include: vertical convex bends (also known as upper vertical bends), vertical concave bends (also known as lower vertical bends), upper vertical tees, lower vertical tees, upper vertical tees, lower vertical tees, lower left vertical tees, lower right vertical tees, vertical crosses, upper vertical crosses, etc. The dimensional deviation of the width and height of ladder cable trays should be within the specified range of V level in GB/T 1804-2000. It should be noted that the width of the cover plate of ladder cable trays should take a positive deviation, and the width of the groove or ladder frame should be reduced by negative deviation.

梯式桥架

Ladder style bridge

4、桥架结构

4. Bridge structure

电缆桥架按照结构类型可以分为槽式、托盘式、梯式、网格式、组装式等。其中槽式即无孔托盘，就是密闭的没有通风孔。托盘式属于有孔托盘。桥架按照结构类型可以分为槽式桥架、托盘式桥架、梯式桥架、网格式桥架等等。不同结构类型的桥架封闭性和散热性性能都不一样。

Cable trays can be classified into trough type, tray type, ladder type, mesh type, assembly type, etc. according to their structural types. Among them, the trough type refers to a non perforated tray, which is a sealed tray without ventilation holes. Tray type belongs to perforated trays. Cable trays can be classified into trough type, tray type, ladder type, grid type, and so on according to their structural types. The sealing and heat dissipation performance of different types of bridge structures are different.

5、桥架标准

5. Bridge standard

2000桥架标准规定桥架的制造、工程设计和施工，除了执行本标准外，还应该符合现有其他标准的规定。2000桥架标准中托盘式桥架结构特征的名称为有孔托盘，代号为P。2000桥架标准中梯式桥架结构特征的名称为梯架，代号为T。

The 2000 cable tray standard stipulates that the manufacturing, engineering design, and construction of cable trays should comply with existing national standards in addition to this national standard. The name of the structural feature of the tray type bridge in the 2000 bridge standard is perforated tray, with the code P. The name of the structural feature of the ladder type bridge in the 2000 bridge standard is ladder frame, with the code T.

以上的精彩内容来自：济南电缆桥架更多精彩内容请点击我们的网站查看更多：http://www.sdhangfeng.com

The above exciting content comes from: Jinan Cable Tray. For more exciting content, please click on our website to view more: http://www.sdhangfeng.com