What is defined as step potential in electrical safety?

Step potential refers to the difference in electrical potential experienced between two points on the ground that a person may occupy simultaneously. When a person stands with their feet apart, one foot may be in an area of a different voltage than the other foot, creating a potential difference. This situation can occur during an electrical fault, where the ground voltage may vary significantly over short distances due to a fault current flowing through the earth.

Understanding step potential is critical for electrical safety, as it highlights the risks associated with standing on the ground near energized equipment or during an electrical event. Educating individuals on how to recognize and avoid situations that may expose them to step potential is a key aspect of electrical safety training. This awareness can prevent serious injury or even fatal electrocution.