Looking for free education here, if you're willing to share.
Why aren't panels "double fed", using approved double-lugs in the subpanel?
Example, current subpanel is bus fed from main panel with 6/3+g. In the future if you need more, it is proper to rip out the 6/3 and replace with higher rated wires. However, you don't parallel feed the panel with lets say another set of #6 wires (and upgrading the neutral/ground as needed to support the higher load).
Is that because of potential unbalanced load between the parallel lines, choosing least resistant path, surpassing the rated load of the line chosen?
It crossed my mind because I see the solar AC lines feed the main panel at the bus, opposite side of SE feeders. Obviously that isn't parallel from the same source as my example, but fed from an additional source.
Why aren't panels "double fed", using approved double-lugs in the subpanel?
Example, current subpanel is bus fed from main panel with 6/3+g. In the future if you need more, it is proper to rip out the 6/3 and replace with higher rated wires. However, you don't parallel feed the panel with lets say another set of #6 wires (and upgrading the neutral/ground as needed to support the higher load).
Is that because of potential unbalanced load between the parallel lines, choosing least resistant path, surpassing the rated load of the line chosen?
It crossed my mind because I see the solar AC lines feed the main panel at the bus, opposite side of SE feeders. Obviously that isn't parallel from the same source as my example, but fed from an additional source.
Comment