What is the purpose of lockout/tagout procedures?

What is the purpose of lockout/tagout procedures?

• A. To control hazardous energy during servicing, prevent unexpected energization, and protect workers.
• B. To speed up maintenance by bypassing safety controls.
• C. To document equipment usage for audits.
• D. To label equipment for inventory.

Answer: (A)

Lockout/tagout is all about protecting workers by controlling hazardous energy during servicing so the equipment cannot unexpectedly start up or release stored energy. The idea is to isolate every energy source a machine could use—electrical, mechanical, hydraulic, pneumatic, thermal, and even stored or gravitational energy—and apply a lock that physically prevents energizing, plus a tag that warns others not to restart it. Before work begins, the energy is verified as isolated and released or restrained as needed, and the person responsible keeps control of the keys or devices that remove the lock. This is supported by proper training and periodic inspections. This focus on preventing unexpected energization and startup is what makes the option the best choice. The other ideas describe different activities—bypassing safety controls, documenting usage for audits, or labeling for inventory—that aren’t the purpose of lockout/tagout.

Lockout/tagout is all about protecting workers by controlling hazardous energy during servicing so the equipment cannot unexpectedly start up or release stored energy. The idea is to isolate every energy source a machine could use—electrical, mechanical, hydraulic, pneumatic, thermal, and even stored or gravitational energy—and apply a lock that physically prevents energizing, plus a tag that warns others not to restart it. Before work begins, the energy is verified as isolated and released or restrained as needed, and the person responsible keeps control of the keys or devices that remove the lock. This is supported by proper training and periodic inspections.

This focus on preventing unexpected energization and startup is what makes the option the best choice. The other ideas describe different activities—bypassing safety controls, documenting usage for audits, or labeling for inventory—that aren’t the purpose of lockout/tagout.