| A | B |
|---|
| MC | Metal Clad |
| NM | Romex |
| RMC | Rigid Metalic Conduit |
| EMT | Electrical Metalic Tubing |
| RNC | PVC |
| ENT | Electrical Nonmetalic Tubing |
| Annex C | Conduit Fill table |
| Coupling | joining two raceways together |
| Connector | joining a raceway to a box |
| Article 314.16 | Box fill |
| boxes mounted in combustible material | flush with finish wall |
| single gang | box rated for one device |
| minimum depth of an outlet box | 1/2" |
| internal cable clamp | counts as largest conductor in the box |
| equipment grounding conductor | counts as largest equipment grounding conductor in the box |
| duplex receptacle | counts as two conductors |
| pigtails | do not count on box fill |
| #10 conductor | 2.5 cu. in. |
| chapter 9 tables four and five | calculation for conduit fill |
| cut in box | used in remodel work |
