Reply to thread

I have such an aluminum casing with a thickness of 2 mm. It will be good for an electric field but magnetic it does not work so well, but capacitive couplings probably play a more important role here, i.e. an electric field?

Connection to PE enclousure will reduce common mode noise?

How to add these common mode here? I could somehow draw a diagram and show how to implement it in practice so that I have as few parasitic elements as possible L and C