There are many advantages of cable bridge laying in Jinan. Why should cable bridge laying be adopted? I summarize the following points for you.

1.济南电缆桥架可与工艺管共架敷设，不单独占用电缆通道，节省空间，避免与地下管线交叉的问题。

1. Jinan cable tray can be laid on the same frame with the process pipe without occupying the cable channel separately, saving space and avoiding the problem of crossing with underground pipelines.

2.线缆敷设在空气中，比电缆隧道的散热条件好，不需通风、排水，运行费用低，一旦出现故障，处理也非常方便。

2. The cable laid in the air has better heat dissipation conditions than the cable tunnel. It does not need ventilation and drainage, and the operation cost is low. In case of failure, it is also very convenient to deal with it.

3.在扩建中增设新电缆，可以充分利用电缆桥架的备用位置，非常方便。

3. Adding new cables in the expansion can make full use of the standby position of cable tray, which is very convenient.

4.随着火警系列产品的日益完善，可使用缆式探测器监测电缆，一旦某个地方温度过高，超过设定的检测器设定值，就能及时报警，使值班人员及时发现隐患，以排除隐患。

4. With the increasing improvement of fire alarm series products, cable detectors can be used to monitor cables. Once the temperature in a place is too high and exceeds the set value of the detector, an alarm can be given in time, so that the personnel on duty can find hidden dangers in time to eliminate hidden dangers.

5.与其它敷设方式相比，济南电缆桥架具有明显的优势，无论在厂区主干线路还是在某一设备内，都可以采用电缆桥架敷设方式。缆直埋管虽然土建成本较低，但其占地面积大，在装置扩建时增加电缆要重新开挖，常因扩建施工等损坏电缆，造成停电事故，且事故处理困难，恢复供电所需时间较长，电缆直埋时需要用铠装电缆，价格要比一般电缆贵。尽管电缆沟方案与电缆直埋相比有一定的灵活性，但石化企业大多是易燃易爆的场所，电缆沟易聚集危险气体，造成隐患，而且化工地表水大多含有化工物料，而且化工地表水大多含有化学物质。

5. Compared with other laying methods, Jinan cable tray has obvious advantages. The cable tray laying method can be adopted whether in the main line of the plant or in a certain equipment. Although the civil engineering cost of cable directly buried pipe is low, it covers a large area. When increasing the cable during the expansion of the device, it is necessary to re excavate. The cable is often damaged due to the expansion construction, resulting in power failure accidents, and the accident handling is difficult. It takes a long time to restore the power supply. Armored cable is required when the cable is directly buried, and the price is more expensive than ordinary cable. Although the cable trench scheme has certain flexibility compared with the direct burial of cables, most petrochemical enterprises are flammable and explosive places, and the cable trench is easy to accumulate dangerous gases, resulting in hidden dangers. Moreover, most chemical surface water contains chemical materials, and most chemical surface water contains chemical substances.

电缆沟一般深一米左右，上面有盖板，人员巡视多有不便。尽管电缆隧道具有检修、增加电缆方便的特点，但由于它位于地下，电缆多散热性差，一般需要强制通风，时时也受渗漏之苦，需要定期排水，运行费用高。由于电缆隧道只能在集中的地段使用，电缆引出后，仍需采用直埋或沟敷设的方式，不可避免地也存在这种弊端。

The cable trench is generally about one meter deep with a cover plate on it, which is inconvenient for personnel to patrol. Although the cable tunnel has the characteristics of convenient maintenance and increasing cables, because it is located underground, there are many cables and poor heat dissipation, it generally needs forced ventilation, suffers from leakage from time to time, needs regular drainage, and the operation cost is high. Since the cable tunnel can only be used in concentrated sections, it is still necessary to adopt the method of direct burial or trench laying after the cable is led out, which inevitably has this disadvantage.