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Clare Snyder Clare Snyder is offline
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Default Electrical Wiring Hot Water Heater

On Fri, 21 Dec 2018 16:59:25 -0500, wrote:

On Fri, 21 Dec 2018 14:21:41 -0500, Clare Snyder
wrote:

On Fri, 21 Dec 2018 10:17:58 -0500,
wrote:

On Thu, 20 Dec 2018 20:16:16 -0500, Clare Snyder
wrote:

On Thu, 20 Dec 2018 17:03:28 -0500,
wrote:


There is nothing non-compliant about a 1920 watt appliance cord with a
5-20 plug on it. (even in the 2017 code)
There is if it is not "listed" with the cord.
In most cases that means "supplied with" the cord.

No that just means they submitted that model for testing and it passed
with a cord. As long as that testing exists you can add a cord to that
model in the field. It happens all the time with disposals and dish
washers. Theoretically you need the "kit" from the manufacturer but if
that was enforced, selling plugs would be illegal.
Nothing is technically "listed" if you change the plug.


I stand behind my statement that in "most" cases something "listed"
for plug and cord connection comes "with" the cord.

Didn't say "always" comes with the cord.

Electric dryers pretty much never come with the cord.

I dont think you can buy one in Canada without the cord - which
virtually always comes attached - and by Canadian code cannot be hard
wired.
Same with a freestanding range.


How do they deal with the 3 wire vs 4 wire receptacle?

They are "supposed to be" replaced and rewired.
However in a house built prior to 2000 (3 wire) it is slill legal to
replace the 4 wire cord with a 3 wire.

Another (relatively common) "fix" that has been done a lot is
replacing the 3 wire outlet with a 4 wire outlet with either the
neutal and safety tied together (put a label on it saying "no safety
ground" or (when wired with a cable with 3 insulated conductors)
putting the "ground" wire to neutral and adding a "safety ground" to a
water pipe.

Not code compliant but no worse than the original 3 wire setup,
which is "grandfathered" and also not "code compliant"

Then there are quite a few that WERE wired with 3 conductor plus
ground and the neutral was either not connected or tied to the ground
pin on the 3 pin to start with. Simply replace the 3 wire with a 4
wire outlet and you are "current code compliant"

I know my dad, an electrician, generally used 3 wire plus ground
"drier cable" (10/3) similar to the 8/3 and 6/3 "stove cable" He
retired before the code change in 2000.
Neither driers or ranges have been legally hardwired here since the
mid/late sixties from what I remember.

About the only 220 wiring he did with 2 wire was water heaters and
baseboard electric heat. Back before the "color coded" plastic cable
(red for 240 volt heating circuits) covers, 2 wire black/red conductor
cable was virtually unheard of around here, so when using 2 wire 220
it was required to paint (or tape) both ends of the white wire black
(or red). Miss it and the inspector gave you a defect. Simpler (if
more expensive) to just use 3 wire and tie off the neutral. Today
black or red heat shrink is the "acceptable" way to re-mark the white
as "live" when required.