Posted by Chances R on May 19, 2008 at 18:47:35 from (205.188.117.74):
I thought it may be a good time to ask about electric arc flash. Last tuesday I was plugging in a 480 volt 3 phase piece of equipment on a 20 amp breaker when it arc flashed inches from my face. For a few seconds I couldnt see anything after about 20 seconds I was about back to normal. I still have the flash irretation after 6.5 days. Any one else ever had such a thing or know someone that has so I could ask a few questions.
I figure someone will ask about ppe and lock out tag out so I will go ahead and answer. The machine was wired by a 480 volt + 20 amp plug male and female. I had what I thought the supply disconect locked out. 2 things were done wrong by who knows who but they had the male plug wired hot amd the female with no volts (yes I know how stupid can ya get) Next thing was the power coming over was wired to the top side of the disconect. I was just plugging in the power cord when the metal cassing of the female plug touched the hot lugs of the male plug. I didnt feel a thing but the noise and the fire ball is something I dont ever want to witness again. I didnt get burnt either just some smoke film on my right hand. Thanks for the help.
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