non dwelling range GFCI

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Is it now required to have a commercial 220V oven on a GFCI breaker?

..No need to change the wire to 4 conductors.

What everyone says answers code minimum requirements.

Exceeding code for future expansion or by design with a GFCI is allowed, but rarely approved, paid, or justified without good cause.

Design preference for 2-Pole GFCI on a Neutral-Bonded appliance may need to show a Utility neutral that was historically unreliable, or if weather historically damages connections at the service drop. Thereby energizing those Neutral- Bonded appliance frames frequently.

If the owner wants the GFCI, or the need to exceed becomes apparent, the bid process opens a methods debate between proposals.

Some will want the electrical service moved underground, while most just want to rough-in a 4-wire appliance feeder, which are the industry standard operating procedures (SOP).

Yes, a 2-Pole GFCI @ 6mA trips faster than 30 Amp thermal, and cost less than 4-wire rough-ins, if the neutral is unreliable. Its an elegant solution from a design perspective, and perhaps more appropriate for potential electrocution from appliance frames, even worth while at my house, if service neutral was unreliable.

However, putting a GFCI where not required by code raises red flags. Most will say, it was not required for a reason. May be problematic. Or, I'm not going to try experimenting beyond SOP, especially if not paid for tinkering with experiments that fail.

And most will want to go SOP, since Non-Dwelling 2-Pole GFCI only required for receptacles not whips, unless you count those build-in to some appliance cords.
 
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Is it in a kitchen? Kind of is assumed it is, but if for some reason is not, and isn't in any of the other areas mentioned in 210.8(B) GFCI isn't required anyway. Still only applies to receptacles though.

If it has metallic wiring method that qualifies as EGC, I'd probably remove bonding jumper anyway and bond the EGC in the whip to the junction box.
 
Is it in a kitchen? Kind of is assumed it is, but if for some reason is not, and isn't in any of the other areas mentioned in 210.8(B) GFCI isn't required anyway. Still only applies to receptacles though.

If it has metallic wiring method that qualifies as EGC, I'd probably remove bonding jumper anyway and bond the EGC in the whip to the junction box.

I don't think that all metallic wiring methods qualifies as an equipment grounding conductor. The old bx or ac cable without the metal strip in it was not allowed to be used as an equipment grounding conductor.
 
I don't think that all metallic wiring methods qualifies as an equipment grounding conductor. The old bx or ac cable without the metal strip in it was not allowed to be used as an equipment grounding conductor.
Why I said a method that qualifies as an EGC.;)
 
I went back to look at the job, the range is using a drop of 1" FMC and the wires looked like two hots and a maybe #8 GREEN, thats it. They told me the new range is a regular range with a cord/plug. I plan on running a new MC from panel to kitchen recept behind stove. SO i will have to add the GFCI the panel. Now IM wondering about the dishwasher, is a recept behind,cord/plug, I can GFCI at panel but will it still need a service switch, Is a single pole somewhere up on the counter enough?
 
The best to get it is by inspection correction. Eventful experiences builds memories needed to learn & remember.
 
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