Shandong bridge is more and more widely used in power engineering or construction engineering, so installation is a problem that needs our attention. The stability of bridge is also a problem that we need to pay attention to in installation. The quality of a bridge is related to many factors. Similarly, the stability of bridge is also affected by many factors, Today, let's solve how to keep the cable tray stable.

1、山东桥架安装前应注意定位放线，根据施工图固定好位置，同时划好水平垂直的线。接下来固定配件，转备好螺丝和膨胀丝，固定桥架。之后就是调整桥架，使得桥架稳定在设计好的位置上，固定完全。

1. Pay attention to positioning and setting out before installation of Shandong bridge, fix the position according to the construction drawing, and draw horizontal and vertical lines at the same time. Next, fix the accessories, prepare the screws and expansion wires, and fix the bridge. Then adjust the bridge to make it stable in the designed position and completely fixed.

2、在对桥架无源电缆线进行设计的时候，需要提供不同走向的布线，其中，弱电系统的各种缆线分类应该布放在桥架内，对于它较佳的路由选择和安装方式都是要依据走向的要求并且结合实际的建筑结构以及空调等等管线的位置来确定

2. When designing the passive cable of the bridge, it is necessary to provide wiring with different directions. Among them, various cable classifications of the weak current system should be arranged in the bridge. The better routing and installation methods should be determined according to the requirements of the direction and in combination with the actual building structure and the location of air conditioning and other pipelines

3、桥架之所以备受关注，主要是设计结构简单，安装门槛较低，同时桥架的维护性非常高，进行清洁和检查比较方便，还可以应对多种复杂的严酷环境，所以在市场上广受关注。在选择桥架时应该选择适合自己的桥架，同时注意安装步骤。

3. The reason why the bridge has attracted much attention is that the design structure is simple, the installation threshold is low, the maintainability of the bridge is very high, it is convenient to clean and check, and it can also deal with a variety of complex and harsh environments, so it has attracted much attention in the market. When selecting the bridge, you should select the bridge suitable for yourself, and pay attention to the installation steps.

4、无源缆线不能与有源电缆并排铺设，受条件所限，如果铺放在同一桥架内，那么他的中间就须采用金属隔板分设，这样引出的缆线尽量避免平面交叉，桥架如果要穿越楼板或者伸缩缝的时候，应该在建筑图上标出并留出相应的位置，避免在施工时临时钻空，因为这样会破坏土建结构，在设计桥架中，为了防止电磁辐射的干扰，应考虑桥架的封闭性。

4. Passive cables cannot be laid side by side with active cables. Limited by conditions, if they are laid in the same bridge, metal partitions must be used in the middle, so that the outgoing cables can avoid plane crossing as far as possible. If the bridge wants to pass through the floor slab or expansion joint, it should be marked on the architectural drawing and leave corresponding positions to avoid temporary drilling during construction, Because this will damage the civil structure, in the design of the bridge, in order to prevent the interference of electromagnetic radiation, the sealing of the bridge should be considered.