What is step voltage?

Step voltage refers to the potential difference that occurs between two points on the earth's surface separated by a specific distance, typically defined as one pace (about 3 feet). This phenomenon is particularly relevant in electrical safety and grounding studies, as it can pose a risk to individuals who are in contact with the ground during a fault condition.

When an electrical fault occurs, the ground potential can change, creating a situation where there is a difference in voltage between two points on the surface of the earth. This difference can lead to dangerous currents passing through a person who is standing between these two points, causing electric shock or injury. Understanding step voltage is crucial for electricians and safety professionals when designing grounding systems to ensure they minimize the risk of these hazardous conditions.

The other options do not accurately describe step voltage. The maximum electrical potential recorded in a grounded system deals with different grounding measurements but does not specifically define step voltage. Similarly, the voltage present across a grounded electrical device relates to circuit design and operation rather than step voltage. The current generated in a circuit under standard conditions pertains to circuit characteristics, which is unrelated to the concept of step voltage.