Electrical Construction & Maintenance

Stumped by the Code? NEC Requirements on Grounding Electrode Requirements for Separately Derived Systems and GFCI protection Requirements of Space-Heating Cables

All questions and answers are based on the 2011 NEC. Q. What are the grounding electrode requirements for a separately derived system, such as a transformer? [250.30(A)(4)] A. First of all, let’s ...
Electrical Construction & Maintenance

Stumped by the Code? Grounding Electrode Conductor Rules

All questions and answers are based on the 2017 NEC. Q. If more than one electrode is available, what does the Code allow for connecting one grounding electrode to another electrode? A. Grounding ...