GEC question

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robertd

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electrical contractor
If the GEC is in metal conduit and a pull box is used a grounding bushing is used where the GEC enters and leaves the box. Does the GEC itself need to be connected to the screws on the bonding bushing, or can a piece of wire, the same size as the GEC, be run between the bushings and then crimped to the GEC?
 
robertd said:
If the GEC is in metal conduit and a pull box is used a grounding bushing is used where the GEC enters and leaves the box. Does the GEC itself need to be connected to the screws on the bonding bushing, or can a piece of wire, the same size as the GEC, be run between the bushings and then crimped to the GEC?
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I see the GEC as the entire system of conductors that are irreversibly crimped together. I'd say it is OK to do what you are proposing. I do recommend awaiting your next response, to see if someone else has a different opinion.
 
This is a common method:


250.64E.jpg

but I see nothing in 250.64(E) that prevents you from using a bond jumper to the bushing and connecting it to the electrode conductor with a listed grounding connector such as a split bolt.
 
rlundsrud said:
I don't think you would need grounding bushings if the pull box doesn't have eccentric or concentric knocks, if I am wrong please let me know.
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GECs and service conductors can require more substantial raceway grounding methods, than standard hubs and locknuts that you can use for most applications.
 
rhovee said:
You are wrong. I let you know. Only way around it is in PVC
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You're wrong. Have you ever read 250.64(E)(1)? Do you know what ferrous means? You probably shouldn't speak in absolutes unless you're positive you know your subject matter.


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ADub said:
You're wrong. Have you ever read 250.64(E)(1)? Do you know what ferrous means? You probably shouldn't speak in absolutes unless you're positive you know your subject matter.


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Ok, whatever. You don't have to be disrespectful about it. I clearly said I thought it was ok, that isn't an absolute.
 
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rlundsrud said:
Ok, whatever. You don't have to be disrespectful about it. I clearly said I thought it was ok, that isn't an absolute.
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Sorry my post was directed at the guy who quoted you, not you personally.


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