Doug Miller wrote:
In article , gwandsh wrote:

At a junction box, why is it bad to step down the gauge of a wire to
match the draw of the load on that wire?
In my case, if I had 12 gauge wire to a junction box, why would 14
gauge from the box to the individual heaters be a violation?

Because the Code says so. There are only a few exceptions, and AFAIK this
isn't one of them.

I asked an actual electrician about this once, and he said it was
because the NEXT silly SOB might add yet something else to that leg of
the circuit. (Hey! I can grab power from that box right there! etc...)

--
aem sends...