For what voltage range does the MAD distance require avoiding direct contact?

The correct choice indicates that the minimum approach distance (MAD) for voltages between 0.050kV and 0.300kV necessitates avoiding direct contact. This criterion is based on established safety protocols that recognize lower voltage thresholds where workers must ensure they maintain a safe distance to prevent electric shock.

The importance of this MAD lies in the understanding that even lower voltage systems can pose significant risks if safety distances are not observed. Proper awareness of the recognized thresholds helps ensure that workers maintain adequate safeguards when working around electrical installations.

The other voltage ranges do not apply to this context for direct contact avoidance as they may correspond to different safety measures or voltages where either the thresholds are higher or industry-specific protocols dictate alternative practices. The focus on the specific range of 0.050kV - 0.300kV underlines the need for vigilance in relatively lower voltage scenarios, providing crucial safety guidance for those in the field.