Can strong current cables and weak current cables be laid on the same bridge?

High-voltage cables and wires must be placed in a unified bridge according to the use environment and the location of the utility, mainly from the perspective of safety. Technically, it is best not to put them together at the same time, because using them at the same time will increase the environmental temperature and bring unsafe factors to production; Strong and weak electricity should be separated, and power and control should also be separated. Putting them together may lead to electrical misoperation. Weak current system may generate error signals, which will bring security risks to the system.

Separate the strong from the weak, separate direct communication, and separate control from special communication. There are many reasons, such as temperature, magnetic field and so on. I met him in the field. When the user places the cable, the main cable is very close to the auxiliary communication line. Results the CPU plug-in of microcomputer protection burned out as soon as it was closed. Later, the voltage was measured, and an abnormal voltage was induced in the communication line at the moment of closing. Although the communication line is grounded with shielding layer, there will still be electromagnetic interference if it is too close. It is best to put it in the cable trench in layers, and if it is not feasible, add a partition.