R Richardrlr Member Location spring,tx Oct 28, 2009 #1 When derating if if you have a set, abc with a neutral do you count it as a curent carreing conductor.
When derating if if you have a set, abc with a neutral do you count it as a curent carreing conductor.
don_resqcapt19 Moderator Staff member Location Illinois Occupation retired electrician Oct 28, 2009 #2 You only have to count the neutral as a current carrying conductor if a majority of the load is non-linear.
You only have to count the neutral as a current carrying conductor if a majority of the load is non-linear.
R Richardrlr Member Location spring,tx Oct 28, 2009 #3 nonlinear load nonlinear load could you explain waht a nonlinear load I looked in the defintions
augie47 Moderator Staff member Location Tennessee Occupation State Electrical Inspector (Retired) Oct 28, 2009 #4 http://ecmweb.com/mag/electric_hows_whys_harmonic/
erickench Senior Member Location Brooklyn, NY Oct 28, 2009 #5 NEC 100 gives a definition of nonlinear loads. Electronic Equipment, Electric Discharge Lighting and Adjustable-Speed Drive Systems are all good examples.
NEC 100 gives a definition of nonlinear loads. Electronic Equipment, Electric Discharge Lighting and Adjustable-Speed Drive Systems are all good examples.