Abstract
There have been recent advances in equipment design and arc flash hazard assessment. It is possible to design a complete site electrical system, from transmission to distribution to utilization voltage, with the estimated arc flash energy below 20 cal/cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> (80 J/cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> ) for all equipment. This paper describes a preferred design, where all workers can have proper arc flash personal protective equipment by using single-layer flame resistant everyday clothes and add a single-layer coverall for the higher energy tasks. Inherently safer design is in our future to reduce hazards and keep our workers safe.
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