What must be done before a worker begins repairs in an area with exposed live wires?

Before a worker begins repairs in an area with exposed live wires, it is essential that the electrical hazards are either controlled or removed to ensure the safety of the worker and others in the vicinity. Controlling or removing electrical hazards might include de-energizing the circuits, installing lockout/tagout (LOTO) procedures to prevent accidental re-energization, and ensuring that there is no potential for electrical shock.

This step is crucial because working with live wires poses a significant risk of electrical shock, burns, or even fatal accidents. By prioritizing the control or removal of the electrical hazards first, the worker can proceed with repairs in a safe environment. Other measures, while important, are secondary to ensuring that the hazards themselves are addressed first.

Using insulating gloves and tools, marking the area as restricted, and providing a safety briefing are all prudent safety practices, but they should not substitute for eliminating the inherent risks associated with live electrical hazards.