The manufacturing documentation in total shared with 3rd party certification bodies shall be proof of evidence, that based on the manufacturing can be made on the level of quality expected related to full hazardous area compliance and functionality.
Keep up good work!
Arpad
Many systems are available on the market. At the end of the
all who apply for any electrical/non-electrical project in any potential hazardous industry
Background With changes to the Type of Protection designations in the IEC
Normal operation Means situations when an installation is used within its design
arpadveress 
