Cable tray can be divided into trough type, tray type and ladder type, grid format, etc. it is composed of bracket, bracket and device accessories. What are the types of cable tray? What should we pay attention to? To clarify the classification of cable tray and device requirements.

1、梯阶式电缆桥架

1. Ladder type cable tray

梯级式电缆桥架是依照着国内及国外的相关资料，改善规划的，这种桥架运用起来本钱比较低，搬起来重量轻，造型比较特别，散热好且透气佳，通常用在直径比较大的电缆，较为适合高或是低压动力电缆。

The ladder type cable tray is improved and planned according to the relevant data at home and abroad. This kind of cable tray has the advantages of low cost, light weight, special shape, good heat dissipation and good ventilation. It is usually used in larger diameter cables, and is more suitable for high or low pressure power cables.

2、托盘式电缆桥架

2. Tray type cable tray

长处是重量很轻，负重量很大，造型漂亮并且结构很简洁，装置也不大困难，通常用在石油，化工，轻工，电讯等，适合动力电缆的装置，也能够用于操控电缆。

The advantages are light weight, heavy load, beautiful shape, simple structure, and easy installation. It is usually used in petroleum, chemical, light industry, telecommunications, etc. it is suitable for power cable installation and can also be used to control cables.

3、槽式电缆桥架

3. Trough cable tray

这是一种完全封闭的电缆桥架，适合有高活络系统的操控电缆，像是计算机电缆，通信电缆等等，它能够很有用的屏蔽操控电缆的干扰，与环境中的重腐蚀，有超 级好的保护效果。

This is a completely enclosed cable tray, suitable for control cables with high flexibility system, such as computer cables, communication cables, etc. it can effectively shield the interference of control cables and heavy corrosion in the environment, with super good protection effect.

4、大跨距电缆桥架

4. Long span cable tray

运用寿命长，且装置比较简单，本钱比较低，切开简单，重 点是不需要维护，运用起来特别的便利，它是由拉挤玻璃钢型材组装起来的，能够用在电力电缆，操控电缆，照明电缆或是其他配件上。

It has long service life, simple installation, low cost and easy cutting. The key point is that it does not need maintenance. It is very convenient to use. It is assembled by pultruded FRP profiles and can be used in power cables, control cables, lighting cables or other accessories.

装置要求

Device requirements

1、电缆桥架跟要用电的设备遇到时，间距要大于0.5公尺。

1. When the cable tray meets the equipment that needs electricity, the distance between them should be more than 0.5m.

2、两组电缆在同一个高度平行时，间距要大于0.6公尺。

2. When the two groups of cables are parallel at the same height, the distance between them should be greater than 0.6m.

3、布放在线槽的缆线时，线槽里边的缆线要顺直。

3. When laying the cables in the trunking, the cables in the trunking should be straight.

4、在吊顶里边设置的时候，槽盖敞开的那一面要坚持80毫米的垂直净空，线槽截面的利用率要小于百分之五十。

4. When setting in the ceiling, the open side of the slot cover should adhere to the vertical clearance of 80mm, and the utilization rate of the slot section should be less than 50%.

以上概括是电缆桥架的分类跟装置要求，装置时千万要注意，这样才能够高能率又安 全的完成工程。

The above summary is the classification of cable tray and the requirements of the device, so we must pay attention to the device, so that we can complete the project with high energy rate and safety.