On 7/1/2014 1:44 PM, Scott Lurndal wrote:
writes:
On 7/1/2014 10:27 AM, trader_4 wrote:
On Tuesday, July 1, 2014 10:49:12 AM UTC-4, jamesgang wrote:
...

Some inspectors will consider a hardwired appliance a change to
the wiring and require you to upgrade to code. Not all but some.
...

The point is, it _IS_ "to Code" and would be highly unlikely imo to find
a local Code that isn't as well in this particular regard.

Maybe some inspector, somewhere will, but it's obviously the exception,
otherwise all the manufacturers of ovens and stoves would not include
instructions on how to wire the appliance into either 3 wire or 4 wire.
If it was a code violation or not acceptable to most inspectors,
it would be totally irresponsible.

And inspectors have been known to be wrong or overly zealous, too...


And anonymous posters on the internet are authoritative?
....

What about "anonymous" posters who happen to have read/know what the NEC
actually says?

"250.140 Frames of Ranges and Clothes Dryers

Frames of electric ranges, wall-mounted ovens, counter-mounted cooking
units, clothes dryers, and outlet or junction boxes that are part of the
circuit for these appliances shall be connected to the equipment
grounding conductor in the manner specified by 250.134 or 250.138.

Exception: For existing branch-circuit installations only where an
equipment grounding conductor is not present in the outlet or junction
box, the frames of electric ranges, wall-mounted ovens, counter-mounted
cooking units, clothes dryers, and outlet or junction boxes that are
part of the circuit for these appliances shall be permitted to be
connected to the grounded circuit conductor if all the following
conditions are met.

The supply circuit is 120/240-volt, single-phase, 3-wire; or
208Y/120-volt derived from a 3-phase, 4-wire, wye-connected system.

The grounded conductor is not smaller than 10 AWG copper or 8 AWG
aluminum.

The grounded conductor is insulated, or the grounded conductor is
uninsulated and part of a Type SE service-entrance cable and the branch
circuit originates at the service equipment.

Grounding contacts of receptacles furnished as part of the
equipment are bonded to the equipment."

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