Trying to find Table for NM cable allowance in PVC conduit. For a garage, using #12 and #14 NM cable.
Tables 1 and 4 in Chapter 9 along with the Notes to the Tables apply, in addition to the requirements in Articles 300, 334, and 352. Please note that if your PVC conduit is installed in a damp or wet location, Type NM cable cannot be installed in the raceway, as NM cable is only permitted in dry locations.
I would avoid running NM through any type of conduit. Due to the ellipse of the cable, the size of the conduit one must use winds up being like 1-inch or 1-1/4 inch. Try to find another way. If you are just talking about a short segment (for physical protection) most AHJs allow that without the sizing becoming an issue.
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