Why is it important to de-energize lines before working on them?

De-energizing lines before working on them is crucial primarily to avoid electrical shock. When a lineman is working on electrical lines, the risk of receiving a potentially fatal electrical shock increases significantly if the lines are still energized. Electrical currents can cause severe injuries or death, making it essential to ensure that all lines are completely de-energized and properly grounded before any hands-on work is performed.

This practice not only protects the lineman but also ensures the safety of other workers and the public in the vicinity. Proper safety protocols require line workers to verify that the lines are de-energized and use appropriate personal protective equipment (PPE) for added safety when performing their jobs.

While other factors such as energy costs and minimizing downtime are relevant considerations in the overall operation of electrical systems, the primary focus in ensuring worker safety is to eliminate the risk associated with electrical hazards.