Aerial work platforms with uninsulated booms must be:

Aerial work platforms with uninsulated booms must be bonded to the conductor to ensure safety during their operation. Bonding in this context means creating a low-resistance electrical connection between the equipment and the conductor (or an electrically grounded structure). This helps to prevent the buildup of static electricity and minimizes the risk of electric shock in the event that the boom comes into contact with an energized conductor.

This practice is essential because uninsulated booms do not have any inherent protective electrical isolation; thus, without proper bonding, there could be hazardous voltage differences that may pose serious risks to operators and nearby personnel. Adequate bonding provides a safe path for fault currents, reducing the potential for electrical shock, and helps maintain safety regulations set forth by occupational safety guidelines.

The other options do not adequately address the necessary safety precautions for uninsulated booms. Grounding is typically used in different contexts and does not substitute for bonding. Insulation would not be applicable as these booms are specifically uninsulated, and removing the equipment from operation would not address the safety protocols required when such equipment is in use.