This 2-hour interactive class covers ampacity calculations for conductors in residential, commercial, and industrial applications, including derating for ambient temperature, number of conductors in a raceway or cable, and installations on rooftops. Participants must bring: NEC book, calculator, highlighters, notebook, and pencils.

This 2-hour interactive class covers calculations for motor disconnects, overloads, branch-circuit conductors, branch-circuit short-circuit and ground-fault protection, feeder conductors, and feeder short-circuit and ground-fault protection. Participants should bring: NEC book, calculator, highlighters, notebook and pencils.

This 2-hour interactive class covers calculations for correctly sizing transformer primary and secondary conductors and primary and secondary overcurrent protection for single-phase and three- phase transformers of all sizes. You will also learn how to adjust input values for transformers with efficiencies less than 100%. Participants should bring: 2020 NEC, calculator, highlighters, notebook and pencils.