Use 314.28(A) to size pull boxes, junction boxes, and conduit bodies when using conductor sizes 4 AWG and larger. Suppose you have a 2-inch raceway coming into a 10-inch square box, ... Add together ...

Where spare, separately switched, ungrounded conductors are provided to a ceiling-mounted outlet box in a location acceptable for a ceiling-suspended (paddle) fan in a dwelling unit, the outlet box ...

I've got a building I'm running some cable for and I've got a problem. In the server room I'm trying to figure out what to do with the cable coming in from the rest of the building. I've got metal ...