The fifth DVD in the 2008 Mastering the NEC series, Commercial & Industrial Service Calculations, provides a thorough explanation of Commercial & Industrial Service Calculations, what you need to know to comply with the 2008 NEC, and how to apply this information on the job. Mark Shapiro teaches the subject, and the video's running time is 83 minutes.

Topics covered in the Commercial & Industrial Service Calculations DVD:

• Introduction, Article 220
• Calculations – Building & Office Suites
• Rules in Article 220, Lighting / Non-Lighting Loads
• Demand Factor Calculations
• Industrial Building Calculations
• Electric Welder Calculations