Studiot, thank you for your explanation :smile:
The purpose of bonding the 400V source to the other sources or the earthed aluminium cabinet would be for extra insurance to ensure it is grounded. I believe the 400V source is already grounded outside of the cabinet, however this would be an...
I'm trying to get a better understanding on how grounding, bonding, and earthing works when high voltage sources interact with lower ones. For example, if you have a 400V AC, 20V AC, and 5V DC source all stored in the same aluminum cabinet (surrounded by a faraday's cage and connected to earth)...