Hello Gentlemen;

What is the source of the "5 to 10 arc flash events per day" statistic that appears in many articles and papers. I have searched high and low on the internet and can not find the originating document/study. None of the papers and articles that I have read list the source. So, does anyone know the source?

Some questions I have about the above statistic
1) 1825-3650 seems like a big spread so I assume the study covered a number of years with 5/day being the low and 10/day the high. Yes/no?
2) Does the 5-10 refer to discrete incidents or to the number of people injured?
3) Are these 3-phase events or something less? Of course some might have started at single-phase and progressed to 3-phase.
4) Are these just events where someone went to a hospital? (i.e. 2nd degree burns or less)
5) Are these just events where someone went to a burn unit? (i.e. 3rd degree burns, or 2nd degree over large portions of the body)
6) Are these all events including the ones in which no injuries were sustained but just equipment damaged?
7) Has anyone broken down the above statistic into various bins as to cause? (i.e. poor maintenence, equipment malfunction, disregarding procedures)
8) What percentage of the total number of interactions with electrical equipment resulted in this number of incidents?

Thanks;

WBurtt

ONLY 5 to 10 a day

Are we not in more danger driving down the road? Don't get me wrong I want to work safely but some of the extents we are currently going to seem to stretch the envelope. I look forward to the responses to this thread.

What I'd like to know is how many are equipment failures versus how many are due to worker negligance..

Hopefully someone doesn't drive Arc Flash Safety over the top so that no live work can get done..

The research that comes from was done by Capshell Inc. You can request a copy of the paper here. http://capschell.com/Research%20and%20Education.htm