Q. When a building has more than one service (as allowed by Sec. 230.2), is there a requirement to ground these multiple services to a common grounding electrode? (Answer based on 2011 NEC.) A. Where ...

Most power quality and safety issues in electrical installations arise from misapplication of the grounding and bonding requirements of Art. 250. One common problem ...

Radio World Engineering Extra’s Aug. 9 issue featured an article on grounding by David Brender and was a good start for understanding the right approach to system grounding at a facility. Let me ...