Having been an electrical power distribution engineer in different jurisdictions, I can tell you when and where to use say 222 or 224 ITS WHICHEVER THE LOCAL JURISDICTION SAYS YOU USE and certainly NOT what I or anyone here (Including Billy Bob and Bubba) may say or think. On typical 120/240 Volt Single Phase Three Wire residential service if it happened one leg of 120 was full loaded and there were no 120 volt loads on the other leg, THE NEUTRAL WOULD BE CARRYING THE SAME CURRENT AS THE HOT LEG, however if both legs of 120 volt carried the same current THERE WOULD BE NO NEUTRAL CURRENT (possibly subject to harmonics).
When I practiced engineering just to be on the safe side when I didnt know the load distribution I would NOT derate the Neutrals ampacity even if the NEC or local inspectors may have allowed it. Better safe then sorry I figured and no one or inspectors complained.
Now yall do as you please, its your money and your choice and you get no argument from me.
John T Long retired EE and rusty on the NEC so no warranty, I can only report how I did it where I practiced, do as you like
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Today's Featured Article - Timing Your Magneto Ignition Tractor - by Chris Pratt. If you have done major engine work or restored your tractor, chances are you removed the magneto and spark plug wires and eventually reached the point where you had to put it all back together and make it run. On our first cosmetic restoration, not having a manual, we carefully marked the wires, taped the magneto in the position it came off, and were careful not to turn the engine over while we had these components off. We thought we could get by with this since the engine ran perfectly and would not need any internal work. After the cleanup and painting was done, we began reassembly and finally came to t
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