Vincent Saturno and Rajan Battish, P.E., RTKL Assocs., Baltimore
Oftentimes, the practical approaches to building grounding systems are more complicated than the principles that explain them. As discussed in Part I, the principles of single- and multi-point grounding can be applied to grounding systems that are effective for various building types. However, a building may have multiple grounding subsystems. They all must work independently of each other, while being tied to the same voltage reference point.
Perhaps no electrical engineering concept is as unclear, unexplained and misunderstood as grounding. Many of these misunderstandings result from methodologies and practices that have floated around the building design industry for years. In fact, some of these grounding approaches are even direct opposites.