Basic Electrical AC Calculation is the second DVD in the 2008 Mastering the NEC series, and now you can purchase it individually if you don’t need the entire series of DVDs. The subject is clearly explained by Mark Shapiro, an electrical professor who is knowledgeable on the subject. He offers a thorough explanation on how you should interpret this section of the NEC on the job.

Since you couldn’t possibly memorize everything in the National Electrical Code, now you can get visual instruction on the important changes as they apply to your job. The 2008 Mastering the NEC series of DVDs offers practical explanations on Code changes, why they were made, and how they can be applied at work.

Mastering the NEC 2008 DVDs are designed to help electricians, designers, supervisors, contractors and maintenance personnel understand the NEC. They can also be used to train and re-train electrical staff. This video's running time is 81 minutes.

Topics covered in the Basic Electrical AC Calculation DVD:

• Introduction, AC & 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