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Many articles have been written about arc flash events mostly with a single focus. This paper brings forth a wider view with time/distance analysis of different arc abatement technologies in medium voltage metalclad switchgear. The IEEE C37.20.7 actual test data from KEMA-Powertest, Inc offers the reader a true snapshot of pressures developed within standard metalclad switchgear enclosure using the latest blend of arc abatement topologies. Comparisons are made between the 3 prevalent technologies which address arc flash by time-magnitude approach boundaries. This paper also addresses the phenomena associated with electrical arcs within medium voltage switchgear by developing an introductory understanding of the generation of an arc and the pressure damages that both equipment and personnel, may encounter.

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