Hi Gang, found some more facinating videos on YouTube, for example: Short circuit on Tubular Bus
Amazing, the forces that are generated in this test!!
and Failure of a 230kv switch, not the same old one...!!
There are a lot more, including this: Accident in Nogales Substation
It appears from the flash at the right of the screen at the very start of the clip that either they closed into a faulted piece of equipment or an animal contact occurred. (From the comments, and what limited Spanish I understand, it seems as though this was man-made.
The same user has clearer video of the aftermath and firefighting posted too.
All reminders of what can go wrong.....be safe!!