Lockout/tagout procedures are designed to prevent which situation during maintenance?

• A. Battery drainage
• B. Overheating
• C. Fire hazards due to arcing
• D. Unintended energizing of equipment

Answer: (D)

Lockout/tagout procedures focus on keeping energy sources isolated so the equipment cannot be energized while someone is working on it. By locking the disconnect or switch and tagging it to show maintenance is in progress, workers are protected from the machine unexpectedly starting up or releasing stored energy. This is the fundamental purpose of LOTO—to prevent unintended energizing of equipment during servicing.

While issues like battery drain, overheating, or arcing can be real hazards in electrical work, they aren’t the primary reason for LOTO. The primary goal is to ensure the equipment stays de-energized and safe to work on until maintenance is complete.