What are the benefits of grounding

Forum: Analog electronics and circuit technology Advantages and disadvantages of earthing the extra-low voltage side

Hello! Can someone tell me which DIN / VDE guidelines must be observed when I operate a device with a metal housing and a 230V switching power supply on low voltage. In this case the secondary side of the device should be earthed. I am also interested in the advantages and disadvantages of such a grounding. I see the advantage that disturbances generated by my device are dissipated directly to the ground and do not come to the outside. In addition, voltages that are applied to the housing from the outside should be conducted directly to ground without affecting the circuit. I see a disadvantage in the fact that interference generated in the device is fed directly into the network via the ground. Is that right so far? Is there more? Thanks!

If your circuit is connected to another protective ground via a data cable (e.g. serially), there could be problems.

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