Originally Posted by
combatpigg
RTechnically, if the voltage is high c and the atmospheric conditions are right, something like a tiny steel cable could flick a power line, ionize the air and create a fault current that the fuse doesn't react to until a transformer gets boiling hot and erupts like Mt. Vesuvius.
You can trigger lightning with 30ga copper wire, if the field is up to a few kV / meter. So why not. Wonder what the primary side was there?