240V Dryer Cord

J

Jimmy7

Senior Member
Location
Boston, MA
Occupation
Electrician
One of my guys swapped out a 3-wire dryer cord with a 4-wire cord for a customer. The dryer is protected by a gfci breaker which trips when he plugs the dryer in. I was thinking that he didn’t move the small white wire that comes from inside the dryer to the neutral terminal. Do you think that not relocating this wire would cause the gfci breaker to trip?
 
Open the dryer door. Find the model number. Google that model #'s installation instructions. Ground and neutral is not to be connected in a 4 wire. On a 3 wire cord, there is no ground, so the neutral is tied to ground.
Sometimes this jumper wire that ties the ground to netural is green wire, sometimes a white wire... some older machines it is an actual copper strap.
 
micabay said:
Open the dryer door. Find the model number. Google that model #'s installation instructions. Ground and neutral is not to be connected in a 4 wire. On a 3 wire cord, there is no ground, so the neutral is tied to ground.
Sometimes this jumper wire that ties the ground to netural is green wire, sometimes a white wire... some older machines it is an actual copper strap.
Click to expand...
We know what you mean, but you need to look at the Article 100--Definitions and try to use the terms as they should be. I fail often enough.

In this case:
Ground
Grounded Conductor
Grounded Conductor, Equipment (EGC)
 
ptonsparky said:
We know what you mean, but you need to look at the Article 100--Definitions and try to use the terms as they should be. I fail often enough.

In this case:
Ground
Grounded Conductor
Grounded Conductor, Equipment (EGC)
Click to expand...
One of these days I'll buy a code book. I tried to figure out how to download one online... You'd think something such as a code book would be easily accessed to the public. But that's the government for you.
 
micabay said:
One of these days I'll buy a code book. I tried to figure out how to download one online... You'd think something such as a code book would be easily accessed to the public. But that's the government for you.
Click to expand...
The NEC is not a mandatory law, it is voluntary however, it is available for free at the NFPA website.

Investing in tools (the NEC being one) is always a good idea.
 
That is what had me all screwed up 43 years ago when studying for my license. Every time I read article 250 I got more and more confused. Finally at night school the instructor said: "The neutral is the grounded conductor" "equipment ground is the grounding conductor" the light bulb in my head finely lit up dimly and I was ok the rest of the way.
 
This might help explain.
 

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Eddie702 said:
That is what had me all screwed up 43 years ago when studying for my license. Every time I read article 250 I got more and more confused. Finally at night school the instructor said: "The neutral is the grounded conductor" "equipment ground is the grounding conductor" the light bulb in my head finely lit up dimly and I was ok the rest of the way.
Click to expand...
Except the grounded conductor isn't always a neutral conductor. Which is why NEC primarily uses the term "grounded conductor" unless specifically talking about a neutral conductor.
 
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