Good Operating Experience, take this for lessons learned and institute an EPRI recommended preventative maintenance plan. Digital Low Resistance checks could of found this issue. Also of note, no station personnel were injured because you were clear of the room when large loads were started.

zoom makes me glad my house was built in the fifties and is well sorted by now

Wiring degrades and some of the old wiring is not all that great.

Looks like ya'll done hired the wrong Mexicans....

Yep, that's Jose' and Carlos' work alright..

You don't hire mexicans for wiring. Brick work, yes, electricity, no...

Um....TEXAS, bro. Mexicans do almost all of the manual labor down there.:lol:

good point, remind me not to buy a house in Texas.

Place is overbuilt like a mofo. All is well

Everything's bigger in Texas, including the structure fires sparked by electrical douchebaggery.

Insulation is insulation, it doesn't matter if the wiring was made robust for what amperage you run. The insulation will degrade as time wears on. I imagine it may have already been replaced since the 50's if not you will have to replace the wiring eventually.