What must an electrician ensure when rigging near electrical lines?

Maintaining proper clearance to avoid electrocution risks is crucial when rigging near electrical lines because it directly addresses the fundamental safety measures needed to protect workers from electrical hazards. Electricians and those involved in rigging must always be aware of the minimum safe distances established by safety regulations. These distances vary based on the voltage of the lines; staying clear of these boundaries helps prevent accidental contact with energized lines, which can lead to serious injuries or fatalities. Proper clearance ensures that workers have a safety buffer, reducing the risk of electric shock while performing tasks in proximity to overhead or underground electrical installations.

While the other options include important safety practices, they do not encompass the primary responsibility of ensuring safety near live electrical lines. For instance, insulated tools can contribute to safety, but if a worker is not maintaining the correct distance from live wires, the risk remains. Similarly, wearing non-conductive shoes may be advisable, but it does not substitute for the essential requirement of providing adequate clearance. Working only during daylight hours could help with visibility; however, it does not inherently address the challenges posed by electrical hazards. Therefore, maintaining proper clearance stands out as the most critical and relevant requirement in this scenario.