Potential Hazardous Locations (HAZLOC) Chemical industry · landfill sites · power generating companies · waste disposal companies · gas supply companies
wood processing industry · agriculture · food and feet industry · metalworking companies · offshore industry
public safety / security · pharmaceutical industry · refineries · workshops · recycling companies
HAZARDOUS AREAS
Hazardous areas are working environments where fire or explosion hazards can occur due to flammable gases / vapours, flammable liquids, combustible dust or ignitable fibres / flyings. These explosive areas are divided into zones according to how often and for how long the explosive atmosphere occurs.
Hazardous Areas - Gases, vapors
Zone 0
Area in which an explosive atmosphere consisting of a mixture of air and flammable gases, vapours or mists is present continuously, for long periods or frequently (> 1000 h / year), (corresponds to NEC Div 1).
Zone 1
Area in which an explosive atmosphere consisting of a mixture of air and flammable gases, vapours or mists is likely to occur occasionally in normal operation (10-1000 h / year), (corresponds to NEC Div 1).
Zone 2
Area in which an explosive atmosphere consisting of a mixture of air and flammable gases, vapours or mists is not likely to occur in normal operation but, if it does, will persist for a short period only
(1-10 h / year).
Hazardous Areas - Dust
Zone 20
Area in which an explosive atmosphere in the form of a cloud of combustible dust in air is present continuously, for long periods or frequently (> 1000 h / year), (corresponds to NEC Div 1).
Zone 21
Area in which an explosive atmosphere in the form of a cloud of combustible dust in air is likely to occur occasionally in normal operation (10-1000 h / year), (corresponds to NEC Div 1).
Zone 22
Area in which an explosive atmosphere in the form of a cloud of combustible dust in air is not likely to occur in normal operation but, if it does, will persist for a short period only (1-10 h / year), (corresponds to NEC Div 2) .
INTRINSICALLY SAFE FLASHLIGHTS
What does intrinsically safe mean?
At its most simple, a definition of intrinsically safe would be:
A device that uses protective techniques to ensure that it cannot be a source of ignition in
hazardous zones where the environment is inherently volatile.
In many industries, fire is a dangerous and constant hazard. Whether it be flammable gases or vapors,
flammable liquids, combustible dust, or ignitable fibers or flying - these work environments
come with a high-level of risk, so workers require safety products specially
designed to reduce or even remove that risk.
These potentially explosive areas are divided into zones according to how often and for how long the
explosive atmosphere occurs. These zones are 0, 1, 2, 20, 21 and 22.
