The sub doesn't allow images, but this is pretty self-explanatory.
I've come across a photo of a 90s LEGO set and noticed this little sticker on it and immediately reminded of the (I believe now old) Flashover logo.
I'm not accusing them of stealing it, but definitely a funny coincidence. I wonder if I'm the first one who noticed it.
As a bit of context, I'm making a firefighting based game (not super realistic) and I was wondering if a flashover could happen or is likely to happen in a big well ventilated area such as a warehouse or would the sheer amount of surrounding air not heat to a high enough level? Any videos I've seen always seem to be residential or demos in smaller rooms.
Thanks for your time
I recently ran an experiment in an HV testing lab where we conducted flashover testing of a vertical insulator in dry condition and wet condition (soaked in tap water by a spray bottle). To my surprise the flashover when dry was 260kV peak, then 266kv when wet. All of my research indicates that the flashover voltage should be lower in wet conditions, but the lab demonstrator assured me there was an interesting explanation. I've spent hours looking for such an explanation but cannot find any results that support my observations. Does anyone know why the flashover in this case was higher, or where I should be directing my research? It feels like a bizarre result and I'm wondering if the testing equipment was actually faulty. Any help would be really appreciated.
Tl;dr - why is insulator flashover voltage higher when the insulator is wet?
