Shandong cable bridge is widely used in electrical equipment and power engineering. Cable tray is divided into trough type, tray type and ladder type. In social life, we often see that let's look at the metal wiring problem of cable bridge.

　　(1)电缆桥架金属线槽布线适合在房间正常环境下干燥，不易被机械设备损坏，但不适合现场金属线槽腐蚀严重。

　　(1) Cable tray metal trunking wiring is suitable for drying in normal room environment, not easy to be damaged by mechanical equipment, but not suitable for serious corrosion of metal trunking on site.

　　(2)同一控制电路的所有相线和中性线应敷设在同一电缆桥架的金属线槽内。行相同的相对路径可以被放置在同一金属线槽,电缆在桥或总截面的电缆(包括外保护层)不超过20%的桥的横截面,负载电流传输线不适合超过30。控制、信号或其相位相似的线路，电缆或电缆的截割量应超过桥梁横截面的50%，电缆或电缆的根数下限。

　　(2) All phase and neutral wires of the same control circuit shall be laid in the metal trunking of the same cable tray. The same relative path can be placed in the same metal trunking, the cable cross-section of the bridge or the total section of the cable (including the outer protective layer) is not more than 20%, and the load current transmission line is not suitable for more than 30. For lines with similar control, signal or phase, the cutting amount of cables or cables shall exceed 50% of the bridge cross section, and the lower limit of the number of cables or cables.

　　(3)山东电缆桥架金属槽垂直或倾斜安装时，应采取有效措施防止电缆或电缆线路槽移动。

　　(3) Effective measures should be taken to prevent the cable or cable route from moving when the metal tray of Shandong cable tray is installed vertically or obliquely.

　　(4)对于电缆桥架线槽处发现的线路，可采用金属软管、硬塑料软管、半硬塑料软管、金属软管或电缆。电缆或发现部分的电缆不得损坏。

　　(4) For lines found in cable tray trunking, metal hose, hard plastic hose, semi hard plastic hose, metal hose or cable can be used. The cable or part of the cable found shall not be damaged.

　　(5)电缆桥渣应平整不变形，内腔应光滑、清洁无毛刺。

　　(5) The cable bridge slag shall be flat without deformation, and the inner cavity shall be smooth, clean without burr.

　　以上是山东电缆桥架布线标准的介绍，希望您能理解。通常有很多电缆时，我们使用电缆桥架。电缆桥架的主要设备沿桥顶布置。卧式卧式矫直设备沿墙、沿轴设备、沿地设备。

　　The above is the introduction of Shandong cable bridge cabling standards, I hope you can understand. We usually use cable bridge when there are many cables. The main equipment of cable tray is arranged along the top of the bridge. Horizontal Horizontal Straightening equipment along the wall, along the axis equipment, along the ground equipment.