Watch this arc flash simulation with a common 4080-volt disconnect setup and mannequin dressed in arc-rated and flame-resistant shirt and pants, made with GlenGuard. Fortunately, this mannequin is wearing proper PPE and the AR/FR clothing self-extinguishes. If this mannequin had been wearing a typical non-AR/FR uniform, this arc event would have likely resulted in an over 50% body burn.
PPE is the last line of defense. Specifying the correct fabric and garments can save lives.