Unfortunately many examples show how it works. even if you install C or D type IBC or BigBag you may change it to ignition source cleaning with a dry clothing.

Hazardous area competence helps you to understand the surrounding.
+more example: Ex light fittings with Ex type certification
in many cases polycarbonat housing with one sentence on it: clean with wet clothing… it does not mean the manufacturer was not careful enough, he make you prepared that way what may happen if not…

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