Minimum competencies:

General:Detailed knowledge of explosion protection (gas / dust)

Supervisor (manager): hazardous area classification / read design / understanding Ex installation and maintenance concepts / close inspection

Further competencies (optional):

Non-electrical explosion protection: ISO 80079-36/-37

Repair: IEC 60079-19

Design: IEC 60079-14 with regards to design

Are you a supervisor on Ex field? pls check your competencies. It shall not be a one time practice, but more a daily if you agree.

Keep up good work!