Understanding Motors in the NEC -- Online Course -- 4 credit hours
Color Key
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Reference Material
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Chapters
Chapter One -- Introduction Explains the focus of this course and definitions.
(Covers articles 430.1, 430.2, 430.5)
(Covers articles 430.1, 430.2, 430.5)
Chapter Two -- Determining Sizes of Motor Circuit Components Discusses how to locate required codes for sizing components. (Covers article 430.6)
Chapter Three -- Motor Circuit Conductors Explains ampacities of wire for motor circuits.
(Covers articles 430.21-430.23)
(Covers articles 430.21-430.23)
Chapter Four -- Motor Controllers Deals with controllers/contactors to start and stop the motor normally.
(Covers articles 430.81-430.90)
(Covers articles 430.81-430.90)
Chapter Five-- Motor Overload Discusses the overload protection for a motor circuit as being being different from overcurrent protection. (Covers articles 430.31-430.44)
Chapter Six -- Motor Branch Circuit, Short Circuit, and Ground Fault Protection Explains overcurrent protection for motor circuits. (Covers articles 430.51-430.52, 430.55-430.58)
Chapter Seven -- Disconnecting Means Explains the required disconnecting means capable of disconnecting motors and controllers. (Covers articles 430.101-430.110(a),(b), 430.111)
Chapter Eight -- Protection and Grounding of Motors Talks about the protection of live parts and the grounding of motors. (Covers articles 430.231-430.245)
Chapter Nine -- Multiple Motors and Loads Covers the adjustments in the preceding chapters where more than one motor or motor and another load are combined together. (Covers articles 430.24-430.28, 430.53-430.54, 430.110c, 430.112, 430.113)