GlennD wrote: ↑
Fri Jan 06, 2017 2:33 pm
240VAC is traditionally black and red (hots) and green (ground. 120VAC is black (hot), white (neutral) , and green (ground). Some dual voltage cables have white
instead of red
. Technically the white
should be marked red when only 240V is use.
Ok, if cwerdna can resurrect this thread for "a technicality" (I actually agree with him; correctness matters), then I can ask about the above.
I guess all you North Americans understood what he meant from context right? But I'm an Australian, and find it astounding that a white wire could be either neutral or hot depending on context, if that's what he's saying. I thought it made sense to have the second hot a red, so red with respect to black would always be 240V. (And that seems to agree with a quick google search.) But surely a "dual voltage" cable would have a neutral. If white is a hot, what color is the neutral?
I won't even mention that in Australia and a lot of the rest of the world, black is neutral and white is phase B (240 or soon 230 VAC with respect to ground, which we call earth.)
Correctness matters. Sometimes it's a matter of life and death.
BTW, is it true that you actually have pure green ground wires in places? The extra cost of the yellow stripe to pander to color blind people is outrageous?
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