HAZARDOUS AREA CLASSIFICATION (HAC) , EXTENSION & REQUIREMENTS( SIMPLE WAY)

Part-2 highlights HAC for Electrical /Control Engineers & Technical Professionals in a simple and easy way with reference to IEC-60079-10 (Part-1)

[@brunomartignago]

Hello, congratulations for the content of the video. Hard to find something so explanatory step by step to define the extent of the classified area.
I'm an engineer in Brazil and if possible, I'd like to get in touch to clear up some doubts, do you have any contact email or social network?
Sorry, but I would like to suggest an improvement, help to understand a little better if you insert some subtitles in the video, mainly in the measurement units.