in many works we do see proposals, like earthing protection shall be realized, anti static/fire-proof clothing is a must have.
but what about the real solutions, which really fit there?! hazardous area site compliance is not about theoretical solutions.
keep up good work and stay safe!
Just found one company providing a list of references, where they were
Breathers provide continuous pressure equalisation between the inside of the enclosure and
Within Ex owner’s engineering we shall follow up green/brown field projects in
Protection concepts of types of protection “d”, “p” and “t” acceptable for
arpadveress 
