We have 4 main 480 services coming into our plant . These range from 4000 amp to 1600 amp . We have bolt-loc switches and molded case SQ D circuit breakers on them . They all have Incident energy level of ( 173 cal/cm at working distance of 1 ft 6 in ) . The PPE level - site-specific says " PROHIBITED " . ( Arc Flash Boundary is 31 ft 2 in ) . I use the PPE we have which is rated 25 Cal's when opening or closing a breaker or switch . Is PPE required to operate a breaker or switch ? If it says "PROHIBITED " is this saying that we must use a remote switch actuator ?