The power to our building was knocked out today for about 2 hours. A 13.5 kV power line arced and burned through its insulation, destroying the line. Luckily there is a backup, but of course it is in roughly the same condition as the original, was sitting in the same water-filled power duct as the original, so...
So far, no damage to our equipment has been found, but it's mighty annoying...
Cheers,
Scott.