Why is it important to apply a lockout device?

Applying a lockout device is crucial primarily because it prevents equipment from being started while repairs or maintenance are being conducted. This safety practice is a fundamental aspect of the Lockout/Tagout (LOTO) procedure, which is designed to protect workers from the unexpected energization or startup of machines and equipment during maintenance activities.

By securing the equipment with a lockout device, it ensures that individuals working on the machinery cannot inadvertently activate it, which could lead to severe injuries or accidents. Lockout devices effectively isolate hazardous energy sources, thereby creating a safe work environment for all personnel involved in maintenance and repairs.

The importance of this procedure underscores its role in safeguarding against workplace hazards, ensuring that workers can perform their tasks without the risk of being harmed by moving parts or electrical energy. In contrast, other options would not align with the primary goal of ensuring worker safety during maintenance activities.