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There's no way you can memorize everything in the National Electrical Code. But if you understand why and what is intended, you will be better prepared to remember the details you need for every day use.
Mastering the NEC DVDs are designed to help electricians, designers, supervisors, contractors and maintainers understand the NEC.
Topics covered:
AC vs. DC
Single Phase & Three Phase Power
Single phase 120/240 Volt Power Systems
3 Phase Systems: 480 & 480/277 Volt Grounded & Ungrounded
240/120 Volt, 3-Phase Delta & 208/120 Volt, 3-Phase Wye
3-Phase Power Calculations
Voltage Drop
Power Factor
Motor Efficiency
Single Phase Transformers
3-Phase Transformers
Single Phase Neutral Current Hazards
3-Phase Wye Systems
Harmonics
Other versions of 2005 Mastering the NEC - Basic Electrical AC Calculation #2 are also Available: