How to keep the wiring distance between strong and weak current cables?

Why do strong and weak current cables need to be separated?

This is because there is a magnetic field around the strong current, if the strong current Weak CurrentWiring distanceWhen it is too close, it will affect the weak current signal. The specific manifestation is: if it is a cable TV line, the signal will not be very clear; if it is a telephone line, the phone will be noisy; if it is a network cable, the network transmission speed will be affected.

Therefore, when wiring strong and weak current, you must follow the following requirements:

1) The user cable cannot be bundled with high-voltage (AC> 1000 V, DC> 1500 V) cables. The minimum interval between the communication cable terminal and the high voltage cable terminal is 450mm.

2) Avoid cabling with low voltage (AC <1000 V, DC <1500 V) cables. The minimum interval between a communication cable terminal and a low-voltage wire terminal (with a solid gap) is 150mm.

3) The user cable can be laid (bundled) with ultra-low voltage (AC <42.4 V, DC <60 V) wires without the need for separate terminals.

4) User cables should be separated from harmful equipment (such as lightning arresters, corrosive fluids, and objects whose temperature exceeds 60 ℃), and the distance should not be less than 150mm.

5) for separation of power cables and user cables, see table 1.

Table 1 cabling of power cables and user Cables

6) for noise separation prevention when low-voltage cables and communication cables are crossed, see table 2.

Table 2 Separation of low-voltage cables and communication cables to prevent noise

The requirements for the wiring distance between strong and weak current cables are analyzed for everyone. I hope you will have a simple reference for those who do the relevant work.