JWelectric
Electrical Contractor/Instructor
I understand.
If the wire feeding the Appliance is three conductor and you DO remove the N-G bonding then You would probably smoke anything that uses the 120V, Oven Light, ETC. Plus you would not have any Ground.
The second sentence of this post proves to me that the first sentence is wrong.
The equipment grounding bond in a dryer or range will not cause anything to “smoke”
The equipment grounding of a system is to provide a low impedance path for fault current and plays no role on how a circuit works.
For current to flow there must be a complete circuit from the source back to the source. When a three wire receptacle is used for a range or dryer and the circuit originates in a remote panel, then from that remote panel back to the service all equipment grounding conductors are in parallel with the neutral and are now carrying current. This is why a three wire receptacle for a dryer or range MUST originate in the service disconnection enclosure to prevent this parallel path.
The equipment grounding conductors MUST bond to the neutral in the service enclosure so they are not allowed to be connected together anywhere else. If they do then there are two conductors that share current.
The equipment grounding conductor connects any exposed metal such as the 6/32 by ½ inch screws that hold the plate covers in place to the neutral in the panel in case they become energized there is a low resistance path to operate the overcurrent device.
Should the equipment grounding conductor be reconnect to the neutral downstream from the service equipment then from the point of the second connection back to the service all equipment grounding conductors are at the same potential as the circuit supplying them.
We can read all we want on the internet but without a full understanding of theory it is useless.
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