Bonding Frames of Ranges, Ovens, and Clothes Dryers, NEC 2023 - [250.140]

[@mikefixac]

I was an appliance repair guy for Sears. Yep, Mike is absolutely correct. Very interesting to learn the history of grounding and WWII. Thank you Sir.

[@MikeHoltNEC]

👍

[@brianmcdermott1718]

Great info. Mike. Thank you thank for your time and history lesson.

[@MikeHoltNEC]

👍

[@victorsr6708]

I Like the history behind this

[@MikeHoltNEC]

👍

[@MarkAlbert]

That's so interesting that oven and dryer outlets were allowed without ground for so long, although grounding of standard 120 V outlets became a requirement in 1950.

[@Sparky-ww5re]

It was actually a little earlier than that, first mentioned in 1947 for the laundry, 1956 for outdoor receptacle outlets before becoming a requirement for all 125V 15 & 20 ampere receptacle outlets in 1962.

[@MikeHoltNEC]

Thank you!😍

[@mikefixac]

Please let me know if I'm wrong about Mark's statement: The oven and dryer outlets do provide ground. It's just through the neutral wire, whereas ideally, you want a separate wire for the ground, IOW 4 wires feeding these appliances.

[@MikeHoltNEC]

All equipment is required to be connected to the circuit equipment grounding conductor; and the Neutral is not permitted to serve the purpose of the equipment grounding conductor (to clear a ground fault). See 250.110, 112, 114, 134, 138, 140, and 142.

[@Joee1257]

Hi, Mike - do you have any answer keys to your books on your website? Thanks in advance

[@michelangelou7]

Is this one on tiktok? I would like to stitch a cool demonstration

[@MikeHoltNEC]

No, just on KZbin. Do you know max video time on TT?

[@jolyonwelsh9834]

I wonder according to art. 406.4D 2b with a GFCI requirement anyway, could you install a NEMA 14-30 receptacle without an equipment grounding conductor (if one isn't available in the receptacle box. Would that be to code?

[@MikeHoltNEC]

Questions not related to the post need to be placed on MikeHolt.com/Forum

[@jaryt88]

Now if the NEC could enforce the appliance delivery companies to require some sort of electrical education that would be great. Separating the G and N has been a thing with 4 wire for a min. Now with GFCI protection you can't get around not doing it. Constant service calls for this. Only good thing is getting paid to remove the G strap.

[@miguelbarriga8472]

Whirlpool does the same thing, trips the range when the oven is used

[@JohnThomas-lq5qp]

How did dryer manufacturers.get away with using a bare ground wite to provide power to the 120 volt motor, drum lights & timer for over 60 years. Sure it would cost them less then $10 to install a 240 to 120 volt control transformer for controls and save three times that at least not having to use 10/3 cable & more expensive 4 wire 30 smp 250 bolt receptacle.