The Understanding Grounding Part 1 DVD, the eighth DVD in the 2008 Mastering the NEC series, offers practical explanations on the subject of grounding systems and services. Electrical professor Mark Shapiro provides a thorough explanation on the subject and shows you best how to apply the Code at work. This video's running time is 77 minutes.

Topics covered in the Understanding Grounding Part 1: Systems and Services DVD:

• Introduction to Grounding, Article 250
• Definitions, Article 100
• Tables 250.66 and 250.122
• Grounding Electrode Systems
• Resistance of Ground Rods
• Bonding
• Sizing Grounding Electrode Conductors
• Grounding Voltage Systems
• Bonding Service Raceways
• Bonding to Other Systems
• Overview