The selection of cable tray and pipeline is the same principle, according to the cable cross-sectional area * 2.5 = bridge cross-sectional area. Then select the cable tray height and width size ≥ the cross-sectional area according to the sample. What are the precautions for cable tray selection in Shandong?

电缆桥架选型主要应该注意一下六个方面：

The selection of cable tray should pay attention to the following six aspects:

1、XQJ型电缆桥架装置的较大载荷支撑间距应小于允许载荷和支撑跨距。

1. The larger load support spacing of XQJ cable tray device should be less than the allowable load and support span.

2、选择电缆桥架宽度时应留有一定的备用空位，以便为今后增添电缆用。

2. When selecting the width of cable tray, there should be a certain spare space, so as to add cable for the future.

3、当电力电缆和控制电缆较少时,可同一电缆桥架安装,但中间要用隔板将电力电缆和控制电缆隔开敷设。

3. When there are few power cables and control cables, they can be installed on the same cable tray, but the power cables and control cables shall be laid separately with a partition in the middle.

4、当山东电缆桥架水平敷设时，桥架之间的连接头应尽量设置在跨距的1/4左右处,水平走向的电缆每隔2米左右固定一下，垂直走向的电缆每隔1.5米左右固定一下。

4. When Shandong cable tray is laid horizontally, the connector between cable trays should be set at about 1 / 4 of the span as far as possible. The horizontal cable should be fixed every 2 meters or so, and the vertical cable should be fixed every 1.5 meters or so.

5、电缆桥架装置应有可靠接地。如利用桥架作为接地干线，应将每层桥架的端部用16mm2软铜线联接（并联）起来，与总接地干线相通，长距离的电缆桥架每隔30--50米接地一次。

5. The cable tray device shall be reliably grounded. If the cable tray is used as the grounding main line, the end of each layer of cable tray shall be connected (in parallel) with 16mm2 soft copper wire to connect with the main grounding main line, and the long-distance cable tray shall be grounded every 30-50m.

6、电缆桥架装置除需屏蔽装保护罩外，在室外安装时应在其顶层加装保护罩，防止日晒雨淋，对如需焊接安装时，焊件四周的焊缝厚度不得小于母材的厚度，焊口须防腐处理。

6. In addition to shielding and protective cover, protective cover shall be installed on the top layer of cable tray device during outdoor installation to prevent sunlight and rain. When welding and installation is required, the thickness of weld around weldment shall not be less than that of base metal, and the weld joint shall be treated with anti-corrosion.

了解了以上六点注意事项以后，能够更好的帮助我们进行电缆桥架选型。感谢您的阅读，希望以上内容对您有所帮助，如您想了解更多精彩内容请点击我们的官网： 山东电缆桥架//www.comprepyme.com。

After understanding the above six points, it can help us to select the cable tray better. Thank you for reading, hope the above content is helpful to you, if you want to know more wonderful content, please click our official website: Shandong cable bridge //www.comprepyme.com .