roger3829
Senior Member
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- Torrington, CT
If you have to increase the conductor size to compensate for voltage drop, does the EGC have to be increased? If so, how do you determine what size EGC that needs to be installed?
Grounding conductor sizing
- Thread starter roger3829
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- Chapel Hill, NC
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- Retired Electrical Contractor
roger3829
Senior Member
- Location
- Torrington, CT
Thanks.
I sort of knew it was in there someplace.......:smile:
I sort of knew it was in there someplace.......:smile:
roger3829
Senior Member
- Location
- Torrington, CT
Dennis Alwon said:
So..... a 20a circuit normally would require #12 with a #12 EGC.
Upsizing to #4 for voltage drop, #4 EGC????
Seems like over kill
roger3829
Senior Member
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- Torrington, CT
roger said:
Thanks for the help and quick reply
- Location
- Chapel Hill, NC
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- Retired Electrical Contractor
I understand but that is what the code requires.roger3829 said:
With wire sizes 10-14 there is a one to one ratio for EGC. When you get into other sizes the ratio changes. Thus going up 2 sizes in the ungrounded conductor doesn't mean you go up 2 sizes in the EGC. In this case it does.
Last edited:
- Location
- Chapel Hill, NC
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- Retired Electrical Contractor
D-Nice said:
What does length have to do with it? If the conductors are upsized to a #4 then you must use a #4 EGC even if the run is only 10 feet.
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