Can an employee visually determine if an overhead catenary wire is energized?

The correct response indicates that it is not possible for an employee to visually determine if an overhead catenary wire is energized. The inability to visually assess whether the wire is live is critical for safety reasons. Overhead wires can carry high voltages, and assuming that they are not energized based on visual cues can lead to dangerous situations, including electrocution.

Even if a wire appears to be intact, it can still be energized due to the electrical systems in place within the rail network. Therefore, relying on visual inspection alone is insufficient. Employees are trained to approach such equipment with caution and to utilize proper testing equipment to ascertain whether a wire is energized before working in its vicinity. This adherence to safety protocols helps mitigate risks associated with high-voltage electrical systems.