Εκρήξιμες ατμόσφαιρες - Μέρος 28: Προστασία εξοπλισμού και συστημάτων μετάδοσης με χρήση οπτικής ακτινοβολίας

This part of IEC 60079 explains the potential ignition hazard from equipment using optical radiation intended for use in explosive gas atmospheres. It also covers equipment, which itself is located outside but its emitted optical radiation enters such atmospheres. It describes precautions and requirements to be taken when using optical radiation transmitting equipment in explosive gas atmospheres.