Keeping your worksite safe should be the top priority. One area of concern should be on fault currents. When powerlines are being worked on there is a risk of severe shock if proper precautions are not being met. Keep in mind, of all construction fatalities 8.5% were from electrocutions.
Electrical charges want to be equal. When there is a person that comes into contact with the electrical source, the current will cause a shock. To avoid this, workers should be grounded. Grounding allows electricity a path where it will go safely. One way to do this on the construction site is by creating an equipotential zone. If you are interested in learning how those work, check out the resource below.
Courtesy Of Yak Mat