A worker weighing 110 lbs can receive how many mA for 3 seconds before going into heart fibrillation?

To understand the concept of electrical shock and its effects on the human body, it is important to know that the threshold for ventricular fibrillation, which is a life-threatening condition where the heart quivers instead of pumping, can vary depending on several factors, including body weight and current duration.

In this case, the worker weighs 110 lbs. Research has shown that a critical threshold for inducing ventricular fibrillation is typically around 67 mA when exposed to an electrical current for a duration of approximately 3 seconds. This value is widely accepted in the field of electrical safety and is used as a guideline to establish safety protocols.

The significant element here is the weight of the individual, as the lethal current can differ based on physiological factors, including individual health and body composition. At 67 mA for 3 seconds, the risk of going into fibrillation reaches a critical point, thus indicating that this specific value is significant in electrical safety training and practices.

Keeping these criteria in mind helps in understanding the limits of electrical shock tolerance and the parameters that should be always considered in any electrical safety assessments or practices.