Do es Electrical equipment have to be labeled for environments where combustible dust is present?
There are no comments yet because this is a can of worms. Or a can of sawdust and worms. The NFPA and the Europeans have two different systems for "Classified Locations". Ours (US) would be a class TWO environment. But here is the rub. Any wood is combustible (carefully chosen word here) but only the finely divided dust which is lofted can also be explosive. Where a simple table saw makes saw dust (combustible, no big deal) a professional manufacturing sanding machine can make mountains of explosive dust every day. And yes this can take out an entire building.
A great place to look for more information is the Chemical Safety Board. CSB.gov Read everything on Dust Explosions and then see that markings on motors are but a small first step in designing the whole system. Not all dust is created equal. And not all wood sawdust needs the same attention.
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