The minimum size raceway for the following feeder conductors is: three, 250 kcmil conductors with xhhw insulation one, 3/0 awg conductor with xhhw insulation one, 4 awg conductor with xhhw insulation. A) 2½ inches for the three 250 kcmil conductors.
B) 2 inches for the one 3/0 AWG conductor.
C) 1 inch for the one 4 AWG conductor.
D) 3 inches for the largest conductor size among the three options.
