The term for incident energy that results in a second-degree burn in 6 cycles or 0.1 seconds is ___.

The term for incident energy that results in a second-degree burn in 6 cycles or 0.1 seconds is ___.

• A. arc rating
• B. arc flash
• C. arc thermal performance value
• D. arc boundary

Answer: (C)

Arc thermal performance value, often abbreviated ATPV, is the incident energy level that would cause a second-degree burn in a 0.1-second exposure (six cycles at 60 Hz). This energy value, measured in cal/cm2, sets the PPE protection needed—the protective garment’s arc rating must be at least equal to the ATPV. The other terms describe different ideas: arc rating is the PPE’s protection level, arc boundary is a distance related concept, and arc flash is the event itself, not the energy threshold.

Arc thermal performance value, often abbreviated ATPV, is the incident energy level that would cause a second-degree burn in a 0.1-second exposure (six cycles at 60 Hz). This energy value, measured in cal/cm2, sets the PPE protection needed—the protective garment’s arc rating must be at least equal to the ATPV. The other terms describe different ideas: arc rating is the PPE’s protection level, arc boundary is a distance related concept, and arc flash is the event itself, not the energy threshold.