Application of Table 310.15(B)(3)(c)

[UMirza]

Please Provide your feedback and interpretation of 310.15(B)(3)(c) for the Scenario below
" EMT conduit with 8 conductors running 40 feet on rooftop of 6 floor facility. Penetrates into the building and runs 260 feet inside electrical closet to the basement. Approx. 15% run outdoor on rooftop while the remaining is indoor. Would 310.15(B)(3)(c) apply to the entire run?
Thanks

Usman

 

[augie47]

IMO, it would apply to that portion of the run on the rooftop. You could transition where the conductors enter tne building.

 

[UMirza]

I guess that would be one option. I will have to install a junction box by the peneteration to transistion/splice. I was thinking more like a direct run if possible.
Thanks for the prompt reply !