Originally Posted By: jpeck
This post was automatically imported from our archived forum.
Yes, we. As in HIs and most, if not all, electricians, when referring to:
Nonmetallic-Sheathed Cable. A factory assembly of two or more insulated conductors having an outer sheath of nonmetallic material.
Yes, "NM" means "Nonmetallic-Sheathed Cable" which includes the following.
Type NM, Type NMC, and Type NMS cables shall be listed.
If you will notice, NM-B is not listed in 334.6. NM-B is a type of NM ("Nonmetallic-Sheathed Cable").
Now, when one of us ("we" of most electricians for that matter) state NM-B, "we" actually mean "NM-B".
NM-B is NM with conductors which have higher temperature rated insulation than the OLD, and just plain, NM, HOWEVER, NM-B IS STILL "NM", as shown in 334.6 (quoted above).