Its official, the new edition of IEEE 1584 – IEEE Guide for Performing Arc-Flash Hazard Calculations was approved by the IEEE-SA Standards Board in September 2018, shifting the paradigm of how arc flash data collection, analysis, and calculations are performed. Read more…
Prior to the 2018 version, NFPA 70E simply cautioned that “greater emphasis may be necessary with respect to de-energizing” equipment with incident energy (IE) exceeding 40 cal/cm2, “when exposed to electrical hazards.” This nebulous direction was applied within the industry by simply labeling everything over 40 cals as “Dangerous – No PPE Exists.” In its new 2018 version, NFPA 70E eliminated this cautionary language. This may lead some to infer that working on energized equipment…
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