Distribution Line Safety

Grounding Define the terms ôenergizedö ôisolatedö and ôde-energizedö with respect to overhead line work. Describe ways in which an isolated or de-energized line can become energized. Describe a typical procedure used to ground an isolated overhead line. Equipotential Grounding Use Ohm’s law to describe current flow in a de-energized overhead line during a ground fault condition. Define the term ôzone of equipotential.ö Describe a method that can be used to establish a zone of equipotential. Equipotential Grounding Connections Describe how grounding equipment can be used to create a zone of equipotential on a three-phase overhead line.