NFPA
70 - National Electrical
Code (NEC), Article500
have classified the hazardous
locations are locations
where fire or explosion
hazards may be exist due
to the flammable gases or
vapors, flammable liquids,
combustible dust, or ignitible
fibers or flyings. This
publication covers the requirement
for electrical and electronic
and wiring for all voltage
in these areas according
to the North America standard
requirement.
