What aspect does step potential primarily deal with?

Step potential primarily deals with voltage levels in the context of electrical safety, particularly concerning electrical ground faults and the risk of electric shock in an outdoor environment. When a person is standing on the ground near a downed power line or a faulted electrical system, there can be a voltage difference between their feet due to the spread of current through the ground. This difference in voltage causes a potential risk of electric shock as the person may complete a circuit by the difference in voltage between their feet, leading to electrical current flowing through their body.

Understanding step potential is crucial for arborists and utility workers who may encounter energized parts or conductors. Proper training ensures they maintain a safe distance and recognize the dangers of ground potential rise, helping prevent accidents and injuries in the workplace when dealing with electrical hazards. This focus on voltage levels underscores the importance of recognizing the electrical environment they are working in, rather than just considering how resistance or energy dissipation might play a role in electrical safety.