When should arc-rated clothing be removed or replaced during a task?

• A. Remove the arc-rated clothing only at the end of the task.
• B. If damaged, wet, contaminated, or if exposure exceeds the garment's approved protection level; replace with appropriate PPE before resuming work.
• C. Never remove arc-rated clothing.
• D. Replace after every hour.

Answer: (B)

Arc-rated clothing is designed to withstand a specific level of arc flash energy, but its protection only holds if the garment remains in good condition and is not compromised by moisture or contamination. The best practice is to remove or replace the garment as soon as any of these conditions occur: the fabric is damaged or torn, it becomes wet or contaminated, or the estimated exposure exceeds the garment’s rated protection. In those cases, continue the task with PPE that matches or exceeds the required protection level before resuming work. This avoids continuing to rely on a garment whose protective ability may have been reduced.

Choosing to wait until the end of the task, never removing, or replacing on a fixed hourly schedule would all fail to address real changes in protection—the key is acting when the garment’s condition or the exposure risk changes.