Still haven't found out what caused the power failure. We're guessing it was from the power company, since it took down our entire facility. (We have two different power feeds coming into the plant. So there have been times when half the plant was without power, but the other side was running just fine.)
The power was off for about 10 minutes. We had just started going around, shutting down the small equipment that was on the UPSs, when the power came back on. A few minutes later, there was a loud boom. People started scrambling around, looking for the source. No one could see anything obvious.
A few minutes later, somebody called and said to direct the fire trucks to the back of the site, since one of the plants was on fire.
So, the fire is out. All the firemen have left. Don't know the extent of the damage to the building. From the outside, it doesn't look too bad. Haven't talked to anyone down in that building.
No one was hurt, so at least that's good.
Not much else is happening. Just waiting for the end of the day, so I can go home, change clothes and go work at the other job, tonight.