arpadveress #ExAM Ex personnel competency Explosion protection 1 year ago Hazardous or explosion-proof? One environment can be hazardous but not explosion-proof. One installation can be both. But only if explosion-proof fits here. Keep up good work! Arpad exprofessional.com Share this:FacebookLinkedInTwitterWhatsAppSkypeEmailLike this:Like Loading... 0 likes 600 views 0 comments Next Article Only Ex h for Ex non.electrical?