Good luck....
Based on previous threads, I'm afraid you will get opinions...it seems unavoidable from the wording:
(B) Metallic Wireways Used as Pull Boxes. Where insulated conductors 4 AWG or larger are pulled through a wireway, the distance between raceway and cable entries enclosing the same conductor shall not be less than that required by 314.28(A)(1) for straight pulls and 314.28(A)(2) for angle pulls.
I have seen a history of ROP and ROC comments which appear to only confuse the "intent".
As worded, I don't think there is little argument that 314.28 applies to
Art 376 in terms of distance between raceway entries...
if it goes further (raceway to opposite wall) becomes a debate.
The wording vs intent issue was discussed at length here:
http://forums.mikeholt.com/showthread.php?t=112571&highlight=376.23&page=4
