Unplanned outages are very rare here. Maybe every 2 or 3 years for 2 hours or so. Underground infrastructure so there never is any relation between weather/thunderstorms and outages.
If things do go out, it's usually because some underground splice made half a century or longer ago went bad.
2 years ago, however, there was an extremely severe failure on the 380kV national grid. A new substation was under construction, the line was grounded. Protection systems were not setup yet in at the substation in question, while the remote shutoff for the feeding station was not enabled yet because the new substation wasn't finished. People had to physically go to the feeding station to turn off power to the line Because of that, the overload on the 380kV lines was so big and long of duration they started SAGGING AND SMOKING over a distance of more than 10km, as can be seen in the video:
https://www.youtube.com/watch?v=nyjCrP38ICcMind you, this is part of the
national distribution grid, not a high voltage line in the street. The power levels are insane.
Absolutely spectacular and horrifying. Imagine being the farmer on that plot of land, out of view of the actual fault, and suddenly you see the 380.000v lines slowly start to get lower and lower and start to smoke... I'd run like hell.
At a certain point the 380kV lines intersected a railway line with 1,5kV overhead power, and it sagged enough from thermal expansion that it actually contacted the railway line. This in turn blew up the entire signaling system over more than 10km of distance.
It is the biggest electrical failure my country's ever seen. The people living around the fault area got their power back the same day from a different feeder, but it took many months for the damage to be fully repaired.
I live about 45km from it as the crow flies, and i noticed the faint light flickers from the fault pulling down distribution grid voltage.