I'll try to keep it brief. In my workshop, I have a problem
with managing my table saw and vacuum. If I plug them into
the same ckt (120V 30A breaker), they will run, as long as
there is no voltage dip or heavy load situations. That
means the occasional and always at the worst of time breaker
As a remedy I simply switched the vacuum to another
line - when I wired the shop I put two ckts wherever any
machinery might be plugged in. That works great, but(t) ...
It means the hassle of turning on the vacuum, and then the
table saw, and opposite to shut down. A pain unless I want
to let the vacwm run nonstop.
My entire shop is switched. EVERY ckt in the shop is
manually turned off/on from switches at the main entrance
from the house. They're simple, SPST properly rated
switches. That way I am confident that NOTHING in the shop
was left running when I leave it. All equipment outlets are
dead that way.
Everything is wired to code, and passed inspection easily.
Now, before I ruin my rep with the zoning board (small,
rural town), I thought I'd ask this here <g>:
Would I be in violation of any NEC by putting both the vacwm
AND the power saw switching onto a DPST switch, so that
flipping the switch turned them BOTH on and off at the same
time? I'd color code the switch with both colors of my
receptacles (all ckts are color coded for easy ID/management
of current draw).
Intuitively I feel it's against code, but ... darned if I
can find anything that would forbid it. Can you guys?
If it turns out it is against code, my next logical step
would be a DPDT relay b ut they're expensive. So, any
Obviously I don't want to go thru the cost of the inspection
again if I can avoid it; but I don't want to do anything
that's not to code. Oh, and everything's in thin-wall