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, and a 2-inch ...

Learn which devices don't need junction boxes, and when to install junction boxes. What Is a Junction Box? A junction box encloses wiring connections and protects them from physical damage.

Placing a plastic pipe over a junction box does not provide the protection offered by a 50-cent cover plate. I don't think a responsible electrician would have left the boxes uncovered.

Placing a plastic pipe over a junction box does not provide the protection offered by a 50-cent cover plate. I don’t think a responsible electrician would have left the boxes uncovered.