Why is it necessary to ensure equipment is de-energized before working on it?

Ensuring that equipment is de-energized before working on it is crucial for avoiding potential safety hazards and electrical accidents. When electrical equipment is energized, there is a significant risk of electric shock, arc flash, or burns, which can lead to serious injuries or even fatalities. Taking the necessary precautions to disconnect and verify that the equipment is not carrying current helps create a safe working environment for technicians and electricians.

By following safety protocols, such as using appropriate lockout/tagout procedures, workers can ensure that they are protected from unexpected energization during maintenance or repair tasks. This principle is a fundamental aspect of electrical safety training and is mandated in many electrical safety standards and regulations to promote safe working practices.