We are running 3 wires and a ground in a RMC to a control panel with a 60 amp circuit breaker disconnect in the control panel. The conduit is run along the ceiling where the ambient air temperature is 100 degrees. The control panel feeds our secondary cooling pump. What size are the ungrounded conductors? All conductors have typeTHHN insulation. A   #6 AWG B   600 Kcmil C   #8 AWG D   #2 AWG

EBK ELECTRICAL WIRING RESIDENTIAL
19th Edition
ISBN:9781337516549
Author:Simmons
Publisher:Simmons
Chapter3: Determining The Required Number Of Branch Circuits, Lighting Outlets, And Receptacle Outlets
Section: Chapter Questions
Problem 12R: How many lighting branch circuits are provided in this dwelling? __________ a. What is the minimum...
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  1. We are running 3 wires and a ground in a RMC to a control panel with a 60 amp circuit breaker disconnect in the control panel. The conduit is run along the ceiling where the ambient air temperature is 100 degrees. The control panel feeds our secondary cooling pump. What size are the ungrounded conductors? All conductors have typeTHHN insulation.

    A  

    #6 AWG

    B  

    600 Kcmil

    C  

    #8 AWG

    D  

    #2 AWG

  1. What size RMC do we need?

    A  

    3"

    B  

    3/4"

    C  

    1"

    D  

    1 1/2"

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