So we shall consider it.
An interesting case is the reflection of wall glasses / windows / doors with glasses in industrial units of potential hazardous area industries. If there is any abnormal condition, you shall assess it as per the probability of a potential ignition source.
Yes, light can be a potential ignition source. You might remember Robinson Crusoe from Defoe first published back in 1715.
Robinson managed to do it, so we may live the consequences as well.
Keep up good work!
Arpad
Each training (but projects too) shall begin with definitions. Common understanding is
Ex basics shall be there for all being related to hazardous area
The preliminary examination for occupational safety – except in the case of hazardous technology – may be conducted by a person with specialized training and professional qualifications in occupational safety, a person authorized by law, or an accredited institution. The examination of hazardous technology must be conducted by a person with a professional license in occupational safety and Explosion protection.
#exprofessional
We live in the world of IOTs. Apps we use many. What
arpadveress 
