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I'm a little skittish about high voltage (defined as 120 VAC or above) and dust. I once had a 100A three-phase breaker box that I had personally locked in the off position blow up in my face. By the grace of God I wasn't injured in the least, but there was a hell of a bang. We later figured that dust falling through the contacts ahead of the breaker had caused a short. (After that I started wearing a face shield while working on electrics.)



I don't know of ANY Personal Computer that is designed to draw power from a 3-phase system, much less one that requires 3-phase, 100Amp supply.

In the US, 3-phase voltage is going to be either 208V or 440 - 480V. That's quite a lot higher potential going on than the common 120VAC house supply, which is single phase.

As with *any* technology where power is involved, we must excercise *reason* coupled with common sense when confronted with safety issues.

And also pay attention to the statistical data, which ih the instance of PCs being able to start home fires is likely down around the fractional percentage of the total. That means it might happen, certainly, under any number of possible circumstances, some of which may be caused by simultaneous failures, such as a natural gas leak in an environment where there is a running PC that also manages to fail and make a spark inside and boom, but that might come under the subject of proper technology maintenance of said enironment more than anything else.

Electrical faults inside the common PC, when running from common household AC, with a properly installed Circuit Breaker on the grounded AC line (or even a properly installed Fuse Box situation on an ungrounded line) is statistically rather safe.


--Mac

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