Even with extensive engineering controls and stringent laws in place to protect workers from Arc Flash Explosions, it still happens. Though Arc Flash incidents can be the result of dust and rodents, it is estimated that 2 out of 3 are caused by worker actions or inactions. 
This Workplace Safety Poster is aimed primarily at reminding workers who are qualified to work on equipment where arc flash can occur, to follow their training and not take short cuts or disregard correct procedures. 
But this electrical safety poster also educates other workers about the dangers associated with hazardous voltage.

Note that the "Arc Flash Hazard" graphic on the poster is also available on our Free Poster Graphics page.