We are running 3 wires in an IMC to a control panel with a 150 amp circuit breaker disconnect in the control panel. The conduit is run 12 inches above the roof on a strut rack. The ambient air temperature is 88 degrees. This control panel feeds the #1 cooling fan. What sized ungrounded conductors do we need? All conductors have typeTHHN insulation.
We are running 3 wires in an IMC to a control panel with a 150 amp circuit breaker disconnect in the control panel. The conduit is run 12 inches above the roof on a strut rack. The ambient air temperature is 88 degrees. This control panel feeds the #1 cooling fan. What sized ungrounded conductors do we need? All conductors have typeTHHN insulation.
Chapter20: Special-purpose Outlets For Ranges, Counter-mounted Cooking Unit , And Wall-mounted Oven
Section20.1: Counter-mounted Cooking Unit Circuit
Problem 4R
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We are running 3 wires in an IMC to a control panel with a 150 amp circuit breaker disconnect in the control panel. The conduit is run 12 inches above the roof on a strut rack. The ambient air temperature is 88 degrees. This control panel feeds the #1 cooling fan. What sized ungrounded conductors do we need? All conductors have typeTHHN insulation.
A #1 AWG
B 100 Kcmil
C #1/0 AWG
D #10 AWG
What sized IMC do we need?
A 3/4"
B 1 1/4"
C 1"
D 1 1/2"
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