Voltage drop

[SNations]

Do any of you folks know if the NEC has a requirement to limit voltage drop? I sure thought that the NEC had a recommendation on voltage drop, but it wasn’t a requirement.  But I can’t find that info now. Any help here is much appreciated.  
Steve

[adair]

3 hours ago, SNations said:

Do any of you folks know if the NEC has a requirement to limit voltage drop? I sure thought that the NEC had a recommendation on voltage drop, but it wasn’t a requirement.  But I can’t find that info now. Any help here is much appreciated.  
Steve

this  is from the interweb w/nec branch and feeder sections cited

https://electrical-engineering-portal.com/download-center/books-and-guides/electrical-engineering/voltage-drop

Edited February 27, 2023 by adair

[Marc]

3 hours ago, SNations said:

Do any of you folks know if the NEC has a requirement to limit voltage drop? I sure thought that the NEC had a recommendation on voltage drop, but it wasn’t a requirement.  But I can’t find that info now. Any help here is much appreciated.  
Steve

Last time I checked, there was a fine print note that suggested that a properly designed wiring system would not have voltage drops in excess of 5%. There was no rule involving it. I don't have the latest cycle.

[Jim Katen]

Barry's link pretty much sums it up. I'll only point out that these are no longer called "fine print notes," but have been changed to, "informational notes."