Which of the following procedures is vital for preventing electrical injuries?

Employing lockout/tagout procedures is vital for preventing electrical injuries because these practices ensure that equipment and machinery are properly shut off and unable to be started up again until maintenance or servicing is completed. This procedure protects workers from the unexpected energization or startup of machines and equipment during their servicing, which can result in serious injuries or fatalities. By securing energy sources—such as electrical supplies—through lockout/tagout, workers create a safe working environment.

The other options do not contribute to safety: using power tools without supervision increases the risk of accidents; conducting work in wet conditions heightens the potential for electrical shock; and removing circuit protections significantly compromises safety by allowing unsafe levels of current to flow through equipment.