When should cable tray be used? Jinan Bridge is a good choice for the installation of a large number of cables in one area, such as the motor control room, the outer shelf room for DCS, the meeting control room, etc. Large cable tray can be separated from the motor control, enter the place of appearance and motor location, and further extend to the operation site to reduce the scale.

电缆桥架应装置在物料溢出、化学品露出及设备损坏比较小的区域，假如遭遇物品溢出，很快就会被干纸浆、黑液和各种物体阻塞，造成火灾危险。在工艺设备的维护过程中，焊接火花常常落到纸浆上，引发电缆桥架火灾。在许多有电缆桥架的地方都发生过。

Cable tray should be installed in the area where materials overflow, chemicals exposed and equipment damage is relatively small. In case of material overflow, it will be blocked by dry pulp, black liquor and various objects, causing fire hazard. In the process of equipment maintenance, welding sparks often fall on the pulp, causing cable tray fire. It happened in many places where there are cable trays.

电缆桥架火灾产生的烟雾分散要求在笔直或水平位置装置防火板，根据组合电缆和电线的厂际防火，建议电缆桥架之间的比较小距离不该小于0.6m。在化学品浓度较高的区域，电缆桥架的装置变得关重要。

For the smoke dispersion caused by cable tray fire, it is required to install fire prevention board in the straight or horizontal position. According to the inter factory fire prevention of combined cables and wires, it is recommended that the relatively small distance between cable trays should not be less than 0.6m. In the area of high chemical concentration, the installation of cable tray becomes very important.

任何不同金属的触摸都会导致电解，钢支架与铝电缆桥架直触摸摸会导致电缆桥架和支架都被腐蚀。玻璃纤维不易受此影响，但会添加本钱。在此类恶劣环境中，运用玻璃纤维或许是除PVC穿线管之外的挑选。为帮助减轻火灾损害和化学作用，加电缆桥架盖板可以避免纸浆、石灰粉尘、矿物质进入。

The touch of any different metal will lead to electrolysis, and the direct touch of steel support and aluminum cable tray will lead to corrosion of cable tray and bracket. Glass fiber is not easily affected by this, but it will add cost. In such a harsh environment, the use of glass fiber may be in addition to PVC threading pipe outside the choice. In order to help reduce fire damage and chemical action, adding cable tray cover can avoid pulp, lime dust and minerals entering.

什么时候应该运用穿线管？当电力和操控线路的装置环境恶劣、电缆数量较少、区域内充满障碍物以及需求化学维护时，穿线管是正确的挑选。当需求电磁干扰屏蔽时，穿线管也是可以选择。

When should a conduit be used? When the environment of power and control lines is harsh, the number of cables is small, the area is full of obstacles, and chemical maintenance is required, the conduit is the right choice. When EMI shielding is required, the threading tube can also be selected.

装置穿线管的优点是可以维护电源和操控线路免受工业环境的损害。任何项意图目标都是长期装置规范，尽量削减穿线管的维护，运用多的规范穿线管类型为热镀锌穿线管。在大型电缆装置中，穿线管可以以更高的本钱到达相同的效果。

The advantage of the device is that it can protect the power supply and control circuit from the damage of industrial environment. The purpose of any project is to standardize the installation for a long time, reduce the maintenance of threading pipe as much as possible, and the type of threading pipe used in many specifications is hot-dip galvanized threading pipe. In large cable installation, the threading tube can achieve the same effect with higher cost.

关于没有那么多电线的小型项目，穿线管是比较经济的。穿线管具有坚持符合电气规范的显着优势。一旦装置结束，再移动填充的或许性很小。而电缆桥架是与电气规范坚持一致的一个挑战，开放式电缆桥架可以装置更多电缆，但是谁来担任监管?

For small projects without so many wires, the threading tube is more economical. The threading pipe has a significant advantage of adhering to the electrical specifications. Once the device is finished, the possibility of moving and filling is very small. The cable tray is a challenge to adhere to the electrical specifications. Open cable tray can install more cables, but who will be responsible for the supervision?

为了大限度地维护已装置的电缆，穿线管是比较好的挑选。玻璃钢电缆桥架也是耐化学腐蚀的理想挑选，但电缆露出在大气或环境中，济南桥架可以很好地支撑。

In order to maintain the installed cables to a large extent, the threading tube is a better choice. FRP cable tray is also an ideal choice for chemical corrosion resistance, but if the cable is exposed in the atmosphere or environment, Jinan cable tray can be well supported.