It IS a code issue!
That said, rarely do most professionals wire to absolute code minimum.
This is NOT a NY thing. Bottom line, in the US disposals are typically NOT wire through a GFI. Simple as that.
What is a YMMV?
All this bull waste of collapsing magnetic fields tripping a GFCI device is some idiots way of trying to explain something they know nothing about. It simply doesn’t happen.
I'm not going to bother to address each of your points. YMMV = Your Mileage May Vary
As for my understanding of grounding and bonding, it is a requirement of my profession. I design/build/install server rooms, backup generator systems and UPSs, as well as wired and wireless indoor/outdoor communications infrastructure, all of which must meet code with regard to bonding and grounding.
I'm so glad you mentioned all this wiring stuff about a disposer. I'm not going to let my woman do dishes anymore. I have a non bonded or Gfi'ed sink too. It's cind of cold here, but I'm thinking I should wash dishes outside until I can get that sucker grounded,. Now I'm arfraid to go near my sink.
Joe Six Pack
Bonding and grounding things has little to do with when a GFCI is required. They each have their place and provide various levels of protection. If you WANT a GFCI, you certainly CAN put one in the circuit, but it is not required. Think of what a GFCI does: it checks the line to neutral power flow, and if it differs, it shuts the power off. You don't even NEED a ground for the thing to work. It assumes that if the input and return current aren't the same, some of it leaked, and that leak MIGHT be through you to ground. To protect you, it shuts off. So, ANY time one trips, whatever is plugged into it is suspect, as NO current devices are supposed to leak current, or at least enough to trip one, and therefore hurt you.
Important note - I'm not a pro
Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013
As for defective tools, explain how a chop saw with just two wires (double insulated, no ground) would not trip the GFCI while it was running, but the moment you release the trigger, it might trip it. Putting a meter on it shows no continuity to the body. A quick Google search will turn up a lot of instances where refrigerators and wash machines trip some GFCIs. Again, I don't claim that every motor will trip every GFCI hence the YMMV.
As someone already said, if the tool or appliance is tripping the GFI there is a problem that the GFI is sensing and shutting off. Have the tool or appliance serviced or replaced.
IF the switch is going to become a "hazard" the GFCI outlet under the sink would do absolutely NOTHING to prevent it from happening, since it is in line before the receptacle.
If the switch is between the supply and the outlet, you are correct. There are other ways to GFCI protect than to use a GFCI outlet at the end of the line.
From my panel, I have a hot and neutral going to a GFCI outlet. From the load side of the outlet, it goes to a switch. From the switch it goes to several outlets under my eaves. Everything downstream of the GFCI outlet and of course the outlet itself is protected. This passed inspection in 1998.
In your situation, the switch is NOT controlling the GFCI outlet, the way it would for a disposer installation. You are comparing apples and oranges.
Yes. I listen to the known sparkys on the site. And thanks to you and them for the site and the help.
I did wire it w/o GFCI. Bt I DID install a GFCI in the same box for a future possible hot water dispenser.
I'm not opposed to spending the few extra bucks or even wasting the few extra bucks if it makes it more safe. I was worried about possible trip issues with a motor such as a g/d.