Electricity Today T&D Magazine

For many utilities, scheduling each day’s construction and restoration work means manually organizing and keeping tabs on ever-changing crew schedules and resources. Managers meticulously update whiteboards dotted with color-coded magnets representing crews and trucks. Augmenting the whiteboards are often schedules pulled from a PC-based project management tool and a database management product. Adding to this challenge is the fact that different departments concentrate on restoring outages, while other groups manage day-to-day construction.

The process is a daily fight to stay ahead of projects and restore outages for customers. While utility company managers and crews always complete this work, according to...

Step Potential

Step potential is the step voltage between the feet of a person standing near an energized grounded object. It is equal to the difference in voltage, given by the voltage distribution curve, between two points at different distances from the electrode. A person could be at risk of injury during a fault simply by standing near the grounding point.

Touch Potential

Touch potential is the touch voltage between the energized object and the feet of a person in contact with the object. It is equal to the difference in voltage between the object and a point some distance...