On Aug 14, 10:25 am, RickH wrote:
On Aug 13, 4:13 pm, "Toller" wrote:

I have just enough 10/3 to run a circuit in my garage if I run the cable
under an aluminum threashold. It fits under there like it was designed for
the purpose, but that doesn't mean it is okay... The cable will go through
studs on a wall, down under the threashold, and continue through the wall on
the other side.
Obviously I will have to be careful to avoid snagging the jacket on any
edges, but other than that is there any inherent reason not to do it?
The alternative is to go over the door, and I would have to buy a roll of
cable to do that. Since I don't anticipate ever using 10/3 again, I would
really like to use up what I have rather than buying even more.

Reasons not to do it...

Some tiler or carpenter in 5 years is going to come along and drive a
screw or nail through it because nobody expects a wire to be there.

When the threshold gets loose a future homeowner will drill a hole in
the aluminum and shoot a screw there to tighten it, (provided they get
to the screwing part after the shock of drilling into it).

If movement causes the hot to contact the aluminum you have an
immediate danger.

If movement causes the neutral to contact the aluminum you have a
hidden danger in that your whole circuit has lost its proper ground,
because potentially a portion of the ground path is now carrying the
load or portion thereof.

It doesnt pass the "snicker" test even if the code books dont address
it specifically-

IOW- if someone had done that previously, and you were to discover
it during some demo, how would you respond? Need restraint?

One conclusion- if you do it as proposed, make sure you don't leave
a forwarding address. :')

J