This Article is for UL / CUL Hazardous Location Lighting of South America, including UL1598, UL844  Hazardous Location Safe Regulations.

Safety regulations for UL1598 general area lamps


All products:

Risk of Fire

Risk of Electric Shock

Special applications:

Marine Ratings

Signaling/Fire Alarm

UL844 - Safety regulations for hazardous area lamps

  • Part I – Class I, Division 1, Groups A, B, C, D locations
  • Class II, Division 1, Groups E, F, G locations
  • Part II – Class I, Division 2, Groups A, B, C, D locations
  • Part III – Class II, Division 2, Groups F, G locations
  • Class III Locations
  • Part IV – Portable Luminaires
  • Part V – Manufacturing and Production Tests
  • Part VI – Marking

Hazardous Location Definition

Class = classification of explosive substances

a)         Class I : Flammable Gases,Vapors or Liquids

b)         Class II : Combustible Dusts

c)         Class III : Ignitable Fibers and Flyings


Division / Zone = area, the frequency of the presence of hazardous materials in an explosive environment

a)         Division 1 : An area in which an explosive mixture is exist all of the time or some of the time under normal operation.

b)         Division 2 : An area in which an explosive mixture is not likely to occur in normal operation and if it occurs it will exist only for a short time.


Group = group, refers to a specific group of flammable and explosive substances

Class I Flammable Gases,Vapors or Liquids have A,B,C,D, total 4 Groups.

a)         Group A : acetylene

b)         Group B : hydrogen

c)         Group C: ethylene

d)         Group D : propane


Class II Combustible Dusts have E,F,G, total 3 Groups.

a)         Group E : metal dusts = Conductive dust

b)         Group F : coal dusts = Non-conductive dust

c)         Group G : grain / power / saw / chemical dusts = Non-conductive dust