SNations Posted February 27 Report Share Posted February 27 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 Quote Link to comment Share on other sites More sharing options...
adair Posted February 27 Report Share Posted February 27 (edited) 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 by adair Quote Link to comment Share on other sites More sharing options...
Marc Posted February 27 Report Share Posted February 27 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. Quote Link to comment Share on other sites More sharing options...
Jim Katen Posted March 4 Report Share Posted March 4 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." Quote Link to comment Share on other sites More sharing options...
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