What device should be installed when cleaning an electrical item to prevent energizing it?

The correct answer is the lockout device because it is specifically designed to ensure that electrical equipment cannot be energized while maintenance or cleaning is being performed. A lockout device restricts the ability to turn on or use the equipment until the lockout is removed, thus providing a critical layer of safety for personnel working on or near potentially hazardous electrical systems.

In the context of safety protocols, using a lockout/tagout system is essential in preventing accidental energization, which can lead to severe injuries or even fatalities. When performing maintenance or cleaning tasks, it is imperative that technicians have control over the power supply to the equipment, and lockout devices serve that purpose effectively.

The emergency stop button is primarily utilized for immediate shutoff in emergency situations rather than maintaining a safe condition during maintenance. The disconnect switch can help in de-energizing equipment, but it does not prevent someone from re-energizing it without authorization. A ground fault interrupter provides protection against electrical shock but does not specifically serve the purpose of preventing equipment energization during maintenance tasks.