Isolating PC from HV equipment and ground loops

I am currently working with a development board which operates at 230VAC. Yesterday, I burned my PC's motherboard, emulator and Nucleo board I used to communicate with the development board.

I would like to isolate at least my PC from HV and more importantly, ground loops, in future work with this dev board. In order to do that I would use this isolator I found on AliExpress:

Adum4160 Usb Isolator low/high Speed Usb Charging Module Digital Signal Audio Power USB to USB Isolator 1500V For Arduino

Is this isolator good for this purpose? Any recommendation is welcomed.

Edit: Here is the diagram of my setup:

Setup