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voltage-based approach boundaries, and now an arc flash protection boundary will have to be calculated to compliment the voltage boundaries. ... Published by OSHA on April 11, 2014, the revisions to OSHA 1910.269 address the frequency and magnitude of arc flash hazards in high-voltage utilities and industrial facilities that operate power ...

Arc flash boundary The 2015 edition of the National Fire Protection Association 70E standard presents two methods for selecting the correct personal protective equipment when working inside the arc flash boundary.