Depth of box and conduit body sizing [314.28 (A) (2), Ex.]. When conductors enter an enclosure opposite a removable cover, such as the back of a pull box or conduit body, the distance from where the ...
Note: This article is based on the 2005 NEC. The sizing requirements for pull boxes, junction boxes, handhole enclosures, and conduit bodies exist to prevent conductor insulation damage. Those ...