What safety practice is recommended when working on energized emergency vehicle systems?

• A. De-energize with lockout/tagout, use insulated tools, maintain safe distances
• B. Leave power on
• C. Wear sandals
• D. Use uninsulated tools

Answer: (A)

Controlling the energy source and using protective measures is essential when working on energized emergency vehicle systems. The best practice is to de-energize the system and apply lockout/tagout to ensure it cannot be re-energized while you’re working. Then use insulated tools and maintain safe distances. De-energizing removes the energy that could shock you or cause an arc; lockout/tagout prevents someone from restoring power accidentally; insulated tools help protect you if exposure to conductive parts remains, and keeping a safe distance reduces the chance of contact with live components or an arc flash.

Leaving power on keeps the system energized and hazards active, which is unsafe. Wearing sandals provides little protection, and using uninsulated tools increases the risk of shock or arc injuries.