According to 314.28 of the 2002 NEC, what are the minimum dimensions required for a metal junction box that has the following raceways (conduits) connected to it? The junction box has two 4-inch EMT ...

Imagine a metal junction box that is 32 inches x 32 inches x 6 inches with two 4-inch EMT raceways connected directly across from one another on opposite walls. Each 4-inch raceway contains three 250 ...