Amendment to 1584-2002 This guide provides techniques for designers and facility operators to apply in determining the arc-flash hazard distance and the incident energy to which employees could be exposed during their work on or near electrical equipment. The amendment will correct text errors in Clauses 5.2, last paragraph; Clauses 5.6, 5.7, and 7.1; and an equation error in the spreadsheet based calculator, Data-Normal Sheet, column I.