Arc Rated (AR) vs Flame Resistant (FR): Understanding the Difference

Similar but different – How do you tell the difference Between Arc Rated (AR), Flash Fire Rated (FFR), and Flame Resistant (FR)? In 2012, NFPA 70E changed the terminology referencing personal protective equipment (PPE); what was formerly referred to as FR (flame resistant) clothing is to be called Arc Rated or AR, according to the […]