Does anyone else see a problem with the wording in the new paragraph of this article?

Where more than two NM cables containing two or more current-carrying conductors are bundled together and pass through wood framing that is to be fire-or draft-stopped using thermal insulation or sealing foam, the allowable ampacity of each conductor shall be adjusted in accordance with Table 310.15(B)(2)(a)

Or maybe the question should be "HUH"?

If the cables meet the definition of being bundled this is already required and why would "thermal insulation or sealing foam"
be singled out?

If we used a fire caulk, would we not need to adjust the ampacity even if the cables were bundled? [Linked Image]


Roger