Mark addresses Article 250, Section 250.122 Size of Equipment Grounding Conductors (EGC). Key points include; 2014 changes to the definition, sectioning, revisions to the increase in sizing, conductors in parallel, and how the EGC is affected.
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Table 250.122 from the 2014 NEC® Handbook will help you determine minimum size equipment grounding conductors for grounding raceway and equipment.
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