derating

[Richardrlr]

When derating if if you have a set, abc with a neutral do you count it as a curent carreing conductor.

 

[don_resqcapt19]

You only have to count the neutral as a current carrying conductor if a majority of the load is non-linear.

 

[Richardrlr]

nonlinear load

nonlinear load

could you explain waht a nonlinear load I looked in the defintions

 

[augie47]

http://ecmweb.com/mag/electric_hows_whys_harmonic/

 

[erickench]

NEC 100 gives a definition of nonlinear loads. Electronic Equipment, Electric Discharge Lighting and Adjustable-Speed Drive Systems are all good examples.