Obtaining reliable data from electric utilities about magnitude and duration of single-phase, line-to-ground fault currents at the service entrance of commercial and industrial facilities is of critical importance in the design of an end-user substation grounding grid. In ground-fault conditions involving the primary side of a substation, circulation of current through the grounding grid will occur, and touch and step potentials will be present at the end-user’s premises. Ground faults ...
Website Registration Required to Access this Content
Only registered users have access to Silver content.
Registration on EC&M allows you exclusive access to high value content centered around proprietary research, expert NEC analysis and in-depth technical procedures.