Oh yeah? And I suppose you totally ignore your local ordinances, don't you? I have to wonder if you didn't get dinged for it, too since you consider it such a great, wonderful thing and assumed on your own that it's what the OP had. You become more of a dunce with every post I see of yours. You're a real troll, I guess.
Nonsense is right; it's extremely easy to misinstall something; I've seen it time after time and luckily always caught it but - it's amazing the kinds of mistakes even electricians can make. They work drunk, hung over and worse sometimes, especially in Chgo when we lived there. I had one inspector out to get one guy fired at one install. Hmm, that wasn't you, was it?
I never said that wasn't so. People commonly refer to several different numbers they see on their equipment. You're a myopic egotist from the look of it; you post just to see yourself in writing.
See, there's your assumptions again, and stated as a fact this time, which makes it a lie. So now you're a liar, on top of everything else. You're getting to be fun.
No, it's not false; you are seriously misinformed of the dangers of such circuits. This is an exposure of an ignorance that plummets your credibility even further than it has been. Such a ckt could only ever be "safe" if it could never develop a fault; which it can, on top of miswiring and other possibilities you'd know if you actually knew much about it. Knowing a buzz word doesn't make you an expert in any way. Look it up.
And that has nothing to do with national vs. local codes.
Until a fault arises. Neutral pops off a stressed outlet with a poor mechanical connect, improperly protected by a ganged breaker, etc. etc. etc.. It's much more dangerous than other ckts given even the same faults in many instances. Your ignorance must really be bliss. ALL of the following make perfect sense and come from the first page of google hits. Audiophiles just abhor them!