Which voltage level indicates that MAD applies when working?

The voltage level that indicates the application of the Minimum Approach Distance (MAD) is 50 VAC. This threshold is critical for ensuring safety when working in proximity to electrical systems. At or above this voltage level, the risk of electric shock increases significantly, and specific safety protocols must be followed to prevent accidents.

In the context of MAD, it is necessary to maintain a safe distance from energized parts to avoid hazardous exposure. The designation of 50 VAC as the threshold is based on extensive research and industry standards that outline safety practices to protect workers from electrical hazards. This regulation aims to minimize risks and ensure that personnel can work safely near electrical installations.

Lower voltage levels, such as 25 VAC or 30 VAC, do not necessitate the same level of precautions because they do not pose as significant a threat. Voltage levels above 50 VAC, such as 75 VAC, would also require adherence to safety protocols similar to those applied at 50 VAC but are not the baseline standard. Therefore, understanding the significance of 50 VAC as the point where MAD applies is essential for ensuring proper safety measures are in place.