Static charge causes dust explosion

A man was critically injured when a static charge in an improperly grounded vacuum cleaner which was being used to clean machinery, ignited the dust causing an explosion and subsequent small fire,

Read more: Static charge caused explosion in Woburn Tuesday - Woburn, MA - Woburn Advocate http://www.wickedlocal.com/woburn/news/x1892418290/Static-charge-caused-explosion-in-Woburn-Tuesday#ixzz2kIk25U9t

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