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Old 11-27-12, 11:32 PM
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extension
Had a question and doubt i can do it but will ask.If i need to extend a #4 AL ground wire(going to copper pipe) can i use a piece like this AL lug splicer or similar -or is it not allowed?[ATTACH=CONFIG]6123[/ATTACH]
I dont want to have to buy/install a 30+ ft new piece if i dont have to.
 
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Old 11-28-12, 03:22 AM
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Although that is the perfect coupling lug for the job..... you can not extend a ground wire in an electrical service. It must be unbroken and unspliced from the panel to the water meter.
 
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Old 11-28-12, 05:15 AM
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Although there are irreversible crimps that can be used the cost of the tool would be more than replacing the wire.
 
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Old 11-28-12, 10:17 AM
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so the irreversable crimp to connect the 2 #4 al is NEC allowed to extend it to the pipe ?
( getting the tool is not a problem)
I did see that in nec 250.30 #1-4 when done as stated is allowed
 
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Old 11-28-12, 07:06 PM
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#4 Al stranded ground wire is less than 20 cents a foot, a 30 foot piece is only $6. I'd replace the wire. The crimp connector may cost more than the wire.
 
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Old 11-28-12, 08:41 PM
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mine is the solid bare wire # 4Al.How much is the solid #6 copper?
 
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Old 11-29-12, 06:31 PM
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mine is the solid bare wire # 4Al.How much is the solid #6 copper?
I don't know exactly, but would guess around 60 to 70 cents a foot. Bare solid is a little less expensive than stranded.
 
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