Explosion protection / hazardous area compliance is a must have action prior to any site activity. Sure it is not a follow up action. If still this is the case, not the most loved one for sure – result most of the cases has some remedial, if not full replacement.
Keep up good work.
Arpad
exprofessional.com
A combustible gas in a distribution line must contain a natural odorant
Those responsible for operating plants and processes where potentially explosive atmospheres exist
Ensuring compliance with safety standards and regulations is paramount in hazardous area
How do you do Ex compliance check on Ex non.electrical installation? Do
arpadveress 
…….of the complete life cycle of an installation, from conception ,design, construction, operation and maintenance till to decommissioning .