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Arc flash concerns were first published in 1982 in Ralph Lee's paper “The Other Electrical Hazard: Electric Arc Blast Burns.” Arc flash hazards were not formally studied until 1993, which is why they are still the least understood electrical hazard existing in most industries. Wikipedia defines arc flash as "the light and heat produced from an electric arc supplied with sufficient electrical energy to cause substantial damage, harm, fire, or injury." Because arc flash temperature can reach …