On May 3, 2015 at Los Alamos National Laboratory Technical Area 53, during Preventative Maintenance on a 13.8-kV electrical substation, a wireman entered a cubicle on the energized portion of the switchgear to clean it with a commercial spray cleaner and suffered severe injuries from the resulting arc flash and blast. This is a presentation that was given at an Argonne National Laboratory ISM Colloquium by LANL Deputy Chief Electrical Safety Officer Tommy R. Martinez about the LANL arc flash and blast.
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