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    the top of chart shows wire size and count ... it says min 4 wires, 2 #16 and 2 #18 Commented Oct 30, 2020 at 3:06
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    @jsotola, what about 2 #14? What about 2 #12 or 3 #12? The chart doesn't address those even though they are likely to be the most common use. I agree that the chart is at minimum confusing, or maybe outright lame... or perhaps there is some esoteric secret knowledge that make mystical electricians able to interpret... Commented Oct 30, 2020 at 5:03
  • I was thinking that, in which case it's more of a list of wire groupings than a range. Since it's drawn as a line, I was thinking electricians somehow intuit the values between the column tracks. I guess not, thanks! Commented Oct 30, 2020 at 5:15
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    looking at the chart again ... i see an inconsistency at 1#14w/4#12 Commented Oct 30, 2020 at 7:17