I would like to know the boundary zone of the hazardous area clasification as per NEC, the NFPA and en60079 (Means for determine how far feets (or Meters) from the hazarduos source Div. 1 and Div. 2.
Situation: 1. I do not have NEC,NFPA and en60079 code.
2. I know that hazardous...