al hildenbrand
Senior Member
- Location
- Minnesota
- Occupation
- Electrical Contractor, Electrical Consultant, Electrical Engineer
The Article 100 Definition of Equipment Grounding Conductor first appeared in the 1968 NEC. The 1968 NEC also included a definition for "Grounding Conductor" along side "Grounded Conductor."Does anyone know the historical traccability of the the name EGC, as well as its definition, as it has evolved in the NEC over the years.
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Is the EGC term a carry over from the days when "grounding" was the thinking of the era, with the definition changing to reflect our better understanding of its role? Or is it something different. I would be interested in the history of the term and how we got where we are today.
"Grounding Conductor" has since been removed from Definitions.
At the beginning of the '50s, the distinctions between "grounding means", "grounded" and "grounding" was not in the Article 100 Definitions. Rather the definitions were scattered. The lead up to the 1962 NEC requirement of the EGC being at all receptacle outlets, and the subsequent confusion and education following resulted in a creating and a shaping of terms and definitions.