480 volt 3-phase Arc Flash Demonstration

!±8± 480 volt 3-phase Arc Flash Demonstration

Here arcs were intentionally initiated by bridging wires across three copper bus bars in a testing laboratory. Three phase 480 volt power was then applied across the bus bars for about 1 second. The wires immediately explode, forming a conductive plasma which forms high current power arcs between phases. The actual fault current in the demonstration is not known, but is likely in the range of tens of kiloamps.

480 volt 3-phase Arc Flash Demonstration

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