I'm trying to figure out my junction box. Basically, I have two sets
of 4 wires in a bundle: one hot, one netural:
The hot bundle is undone with all wires on the right, with the hot
I know what one of the wires (the modern one) in each set does: powers
my light fixture. That leaves three wires in each bundle.
I assume that a wire comes from the electrical box and is split into
two circuits here. Is that the only possible thing that might be
happening? And also, if I'm unable to determine what one of these
circuits does, should I simply disconnect that wire inside this box?