Alright - I know this sounds circular but it is....
- 240.4(G) allows use of 440 part 3&4... (since we're talking conductors part 4)
- 440.31 has two options - Article 310 or if applicable 440.6(A), Exception No. 1. (dealing specifically with 'hermetic refrigerant motor-compressors')
As far as I can see at the moment - this is the only way out of going BACK to Article 310....
Because otherwise 440.6(A) itself would also put you BACK at Table 310.16~19....
- Go BACK to Article 310 unless covered in the exception 1 of 440.6(A)
- BACK at Article 310 you then end up in 310.15 and the Table(s) 310.16~19
- Table 310.16 and 310.17 have a few little *'s to remind you about 240.4(D) - (While it is assumed only to be a reminder??? We would otherwise not ignore it, only in a choice instance have we been told to ignore it.)
My conclusion is that unless the AC unit compresor is hermetic, and "as modified in 440.6(A), Exception No. 1" then 240.4(D) is still valid....
And no others in part 4 specifically permit or require to ingore 240.4(D)
What 240.4(G) gives you, 240.4(D) takes away, unless it is hermetic "as modified in 440.6(A), Exception No. 1"