What is the acceptable let-go threshold range in milli-amperes for a 60-hertz AC circuit?

The acceptable let-go threshold range for a 60-hertz AC circuit is indeed cited as being between 10 to 40 milliamperes. This threshold represents the current level at which a person can lose their ability to let go of a live conductor due to the involuntary muscular contraction caused by electrical stimulation. Understanding these values is crucial for electrical safety, as they indicate the point at which the risk of severe injury increases significantly.

At levels below this threshold, individuals may still be able to voluntarily release their grip on an energizing source, thereby mitigating the potential for prolonged electrical exposure and the associated risks, such as serious burns, cardiac arrest, or other life-threatening injuries. Knowing this range is paramount for anyone working with or around electrical systems to ensure that safety protocols are strictly adhered to, particularly in environments where electrical hazards are present.