Touch voltage is most dangerous when:

Touch voltage is most dangerous when it exceeds the potential difference of normal conditions because elevated touch voltage signifies an increased risk of electric shock to individuals who may come into contact with energized equipment or conductive materials. Under normal conditions, the voltage present should be within safe limits to prevent harm. When touch voltage exceeds these limits, it can lead to severe consequences, such as electrical burns or cardiac arrest if a person were to touch an electrically charged object.

The factors that contribute to touch voltage being particularly hazardous include aspects like grounding systems, environmental conditions, and equipment failures. When the voltage rises above normal operating levels, it indicates that there may be faulty equipment, inadequate grounding, or other electrical anomalies that could compromise safety. Therefore, monitoring and ensuring that touch voltage remains within safe parameters is crucial in electrical installations and usage to protect individuals from electric shock incidents.