电缆桥架是传统工业中使用较多的建筑材料之一，它保护电缆免受外部因素的影响，确保电缆桥架没有问题。它是我们有线电视线上的助理。所有电缆均安装在桥架内，因此桥架的安装符合标准要求，检修时开盖非常方便。下面我们就来看看电缆桥架材料是如何选择的。

Cable tray is one of the building materials widely used in traditional industry. It protects the cable from external factors and ensures that there is no problem with the cable tray. It's our assistant on cable TV. All cables are installed in the bridge, so the installation of the bridge meets the standard requirements, and it is very convenient to open the cover during maintenance. Now let's take a look at how the cable tray material is selected.

1、电缆桥架是采用高质量钢板制成的全密封、高强度矩形钢管。外观采用镀锌处理，大大提高了防腐能力。桥架的内外要光滑平整，不得有棱角、扭曲、翘曲等变形现象。

1. Cable tray is a fully sealed, high-strength rectangular steel pipe made of high-quality steel plate. The appearance is galvanized, which greatly improves the anti-corrosion ability. The inside and outside of the bridge shall be smooth and flat without edges, corners, distortion, warpage and other deformation.

2、分线盒和插座盒：用作电缆在电缆平面内的旋转，彼此相邻。交点是包络线的交点，可以改变成不同的管形，并在一定的高度范围内进行调整。在双跳线配电箱内安装绝缘板，保证强弱电流之间的绝缘和屏蔽。当强弱电流的追踪非常困难时，该桥采用了深水平接线盒，很大地方便了横向跨桥的几条线路的方向。

2. Junction box and socket box: used for the rotation of cables in the cable plane, adjacent to each other. The intersection point is the intersection point of the envelope, which can be changed into different pipe shapes and adjusted within a certain height range. An insulating board shall be installed in the double jumper distribution box to ensure the insulation and shielding between strong and weak currents. When the tracking of strong and weak current is very difficult, the bridge adopts deep horizontal junction box, which greatly facilitates the direction of several lines across the bridge.

3、专用插座：用于引导电缆，必要时可作为电源插座、电话、视频插座或电脑终端使用。出线设置为距分隔线框230mm，出线区标准间距为600mm。在双托盘的情况下，与两个桥接器相邻的设备的出口距离为1400 mm。

3. Special socket: it is used to guide the cable and can be used as power socket, telephone, video socket or computer terminal when necessary. The outgoing line is set to be 230mm away from the separation wire frame, and the standard spacing of the outgoing line area is 600mm. In the case of double trays, the exit distance of the equipment adjacent to the two bridges is 1400 mm.

4、连接支架管件：直线连接管件采用圆形管接头，变径连接的连接箱管件连接，机架与管道的接线端子连接，用于支架支撑和高度调节的支架和调节螺栓，以及它们的调节螺栓长度因施工条件而异。高度调节通常是深为30-50mm的特殊接头，用于横梁或横梁。桥梁的角度采用平曲线，桥梁的上下连接采用纵向曲线。

4. Connecting support pipe fittings: the straight-line connecting pipe fittings adopt circular pipe joints, the connecting box pipe fittings for variable diameter connection, the connecting terminal between the rack and the pipeline, the supports and adjusting bolts for support and height adjustment, and the length of their adjusting bolts vary with the construction conditions. Height adjustment is usually a special joint with a depth of 30-50mm, which is used for beam or beam. The angle of the bridge adopts horizontal curve, and the upper and lower connections of the bridge adopt longitudinal curve.