What precaution should be taken regarding electrical lines during the rigging process?

Maintaining a safe distance from electrical lines is crucial during the rigging process to prevent electrocution hazards. This precaution is a fundamental safety practice that should be observed by all personnel involved in rigging and lifting operations. Electrical lines can pose serious dangers due to the potential for electric shock or arcing, which can occur if rigging equipment comes into contact with live wires.

Keeping a safe distance helps ensure that workers are not exposed to these risks, allowing them to focus on their tasks without the added concern of encountering electrical hazards. This practice is often enforced by safety regulations and guidelines, as it significantly lowers the likelihood of accidents.

The other choices, while they contain important safety measures, do not address the immediate necessity of maintaining a proper distance. Disconnecting lines, insulating them, or using double insulation on tools are essential practices in specific scenarios but do not replace the fundamental requirement of avoiding close proximity to electrical sources.