bjp_ne_elec
Senior Member
- Location
- Southern NH
(Just a note on the Subject line - I wanted to say - "what scenario would imply it? - but the field is a few characters shy)
Have heard the term "double derating" and references to 215.2(A)(1) - - but what does this really imply? It's been inferred, that this section is written so this double derating does not occur, but I'm having difficulty pulling that interpretation out of the verbiage.
If you have a mixed load of say 80 amps continuous and 100 non-continuous - is there a different result if one scenario was fed by three conductors in a raceway and the other one happened to be fed with four conductors? In the four conductor case, you have a situation where 310.15(B)(2)(a) applies.
Thanks
Brett
Have heard the term "double derating" and references to 215.2(A)(1) - - but what does this really imply? It's been inferred, that this section is written so this double derating does not occur, but I'm having difficulty pulling that interpretation out of the verbiage.
If you have a mixed load of say 80 amps continuous and 100 non-continuous - is there a different result if one scenario was fed by three conductors in a raceway and the other one happened to be fed with four conductors? In the four conductor case, you have a situation where 310.15(B)(2)(a) applies.
Thanks
Brett