Dataset for Bayesian analysis and belief propagation

Hi, I was hoping this would be the right place. I’m currently in the stage of my PhD where I’ve spent a lot of time learning about techniques and read a lot of papers ans tutorials ans the methods I’ll be using for my research.

But I haven’t been able to actually apply it to real system examples. I’ve tried to find datasets online but I haven’t been able to find one that would be applicable.

My research is on civil infrastructure systems ( specifically in nuclear engineering and decommissioning). I’m trying to find data on systems systems that can be represented as a connected network graph. Right now I am looking to analyse reliability in these kinds of system, but I’d also later on like to use Bayesian networks.

Examples of systems like this would be a power distribution network maybe ?

Thank you in advance for your help. If more info or context is needed I’ll be happy to elaborate.