Example No. 3: A pull box contains two 4-inch raceways on the left side and two 2-inch raceways on the top. What is the horizontal dimension of the box? (a) 28 inches (b) 21 inches (c) 24 inches (d) ...

A straight-pull calculation applies when raceways containing conductors enter one side of a box and leave through the opposite wall of the box [Sec. 314.28(A)(1)]. For other types of pulls where the ...