Possible Pattern w/ 110.14(C) and 310.15(B) ... Check My Math, What Do You Think?

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Sorry if I didn't get the question, but see 240.4(D)(3&4) if you need code that requires 15A circuits.

240.4(D) also prohibits the "Next Size Up" rule 240.4(B) on these small conductors, which include #10 wire, limited to 30A, except when other articles apply as listed in table 240.3
That is not a code section that requires a 15A circuit, not in the same way that 210.11(C)(1-3) require 20A circuits.
240.4(D) just tells you the maximum OCPD for a given wire size.
 
That is not a code section that requires a 15A circuit, not in the same way that 210.11(C)(1-3) require 20A circuits.
Yes, #14 AWG fed from 200A load centers, or other 75°C equipment shows 20 Amp ampacity, per Table 310.16.

Table 310.16 Note ** points to 240.4(D)3 code rule that limits that 20A capacity to 15A Max.
240.4(D) just tells you the maximum OCPD for a given wire size.
Are you still insisting "Next Size Up" rule applies to these small conductors?
 
Yes, #14 AWG fed from 200A load centers, or other 75°C equipment shows 20 Amp ampacity, per Table 310.16.
Table 310.16 Note ** points to 240.4(D)3 code rule that limits that 20A capacity to 15A Max.
With all due respect, this is not a valid rebuttal.
All you've done is pull an ampacity from 310.16 and apply 240.4(D).

I initially said, I couldn't think of anything in the code that required a 15A circuit.
240.4(D) is requiring you to limit the ampacity on #14AWG to 15A by saying 15A is the maximum permitted OCPD.

It is NOT telling you to provide a 15A circuit.
I was VERY CLEAR about this... I said I was talking about the code requiring a 15A circuit
in the way that 210.11(C)(1-3) requires 20A circuits.

This is NOT the same thing. And this is a pointless tangent.

The whole 15A circuit thing was just part of the discussion about how I interpreted 310.15(B) and how, if it was an acceptable interpretation, that #14 AWG THHN on 60*C terminals, derated from 90*C, would never allow for a 15A ampacity.

Are you still insisting "Next Size Up" rule applies to these small conductors?
What I'm INSISTING IS, unless you have something to contribute to the discussion about 310.15(B), go away.
 
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