2005 Mastering the NEC - Understanding Grounding Part 1: Systems and Services DVD # 8
Mastering the NEC DVDs can be used to train and re-train electrical staff!
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:
Understanding Electrical System Grounding, System Grounding vs. Equipment Grounding, Current Flow in a Grounding System, Definitions of Grounding Terms, Table 250.66 vs. Table 250.122, Grounding Electrodes, Ground Rods, Equal Potential Grounding, Sizing of Service Grounding Conductors, Which Electrical Systems Require Grounding, Grounding Services, Service Equipment & Raceway Bonding, Installation of Grounding Electrode Conductors, Separately Derived Systems, Grounding & Bonding for Distribution Transformers & Generators.