Primary - Secondary - Tertiary explosion protection
So far we can say it is all about prevention.
Primary: prevention like how to avoid the presence of hazardous material…
Secondary: prevention like how to avoid presence of ignition sources…
Tertiary: prevention like how to avoid any harmful consequence of a blast or similar…
Picture gives a good indication: partial we can be successful here and the remaining dangers we shall cover with the next possible protection layer.
All 3 shall be with importance for the complete technology in possible hazardous environment. Completeness shall be with all presence there.
Keep up good work!
Arpad
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