Explanation: Section 250.53(A)(2) requires that a single ground rod be supplemented by another electrode. An exception allows a single rod if the resistance of this ...

The use of structural metal as a grounding electrode is an issue that has been revised during several recent Code cycles. The 2011 NEC has once again revisited the rule explaining when a structural ...

For starters, the term "ground" refers to a conductive body, which is typically the earth. The act of "grounding" means creating a low-resistance path between an electrical circuit or equipment to the ...