If the code panel wanted to say 'must be manufactured and listed as an assembly,' they need to say so.
Agreed
if the NEC uses an example, it should be done in a manner of this is the way it should be, not "this is the example we are not talking about."
Although my job requires me to stay In the books. I am better able to interpret what is written, I can see how the passage in 250.146(A) can throw someone. I have found that to better interpret something is to read it out load slowly. If it sounds hinky, chances are, it is. At least my eyes does not always catches that. The just go, "there is something here that seems out of place."
so if you see me on the street talking to myself, I am just analyzing. Really