Same topic, different containers....
So why is it you can have up to 30 conductors in any cross-section of gutter/wireway before the need for derating? (under 20% fill of course)
Why is it derating not applicable under 24"?
What about all those conductors on both sides of every panel?
What about junction boxes?
Do switch legs and travelers count?
Ever wonder why 3 or more conductor cable is triplexed? (Twisted clock-wise) PS - you can get 12-8 w/ Gnd MC! And all are twisted the same way.
