"Approval" is up to the AHJ.
Locally, wireways have to be listed to be approved.
There are several shops nearby that can supply special sized wireways with a NRTL label.
There are no requirement for metal wireways to be listed as per 376.
Nonmetalic wireways are required to be listed as per 378.6 as is nonmetalic gutters per 366.6
There are no requirement for metal wireways to be listed as per 376.
Nonmetalic wireways are required to be listed as per 378.6 as is nonmetalic gutters per 366.6
Agree. That's why I noted "approval".
The Code has a very limited requirement for "listed" products, but many jurisdictions require listing for approval and metal wireways can be listed.
