Read More
Grounding and bonding are distinct concepts with different purposes -- and confusing them causes real hazards. This article covers the NEC Article 250 framework, theater-specific Article 520 requirements, EGC impedance and fault current calculations, generator separately derived systems, GFCI protection requirements, outdoor wet-location grounding, and field verification methods including low-resistance ohmmeters, meogohmmeters, and ground loop impedance testers.