What term describes the threshold at which electrical current causes muscles to lock up?

The term "let go threshold" describes the specific point at which electrical current causes involuntary muscle contractions, making it difficult or impossible for a person to release their grip on an electrically charged object. This phenomenon occurs because electrical currents stimulate the muscles, leading to a sustained contraction. Understanding the let go threshold is crucial for safety when working with or around electrical equipment, as it indicates a point beyond which a person may be unable to free themselves from an electrical source, potentially resulting in severe injury or electrocution.

Recognizing the distinction of "let go threshold" helps individuals comprehend how much current is needed to interfere with voluntary muscle control. This awareness plays a critical role in risk assessment and safety protocols in environments where electrical hazards exist, underscoring the importance of proper training and precautions when handling electrical systems and equipment.