5019T Flat Panel Industrial Touch Monitor Chapter 2 – Installation
14
143627(A)
Division 1 Locations
A Division 1 location is one in which flammable or ignitable gasses, vapors, or
combustible dusts and particles can exist due the following conditions:
••••
Normal operating conditions.
••••
Because of repair, maintenance conditions, leakage, or where
mechanical failure or abnormal operation of machinery or equipment
might release or cause explosive or ignitable mixtures to be released or
produced.
••••
Combustible dusts of an electrically conductive nature may be present in
hazardous quantities.
Note
Xycom Automation
5019T, 5019T-24V
systems are not suitable for
installation within Division 1 locations.
Note
Electrical equipment cannot be installed in Division 1 locations unless
they are intrinsically safe, installed inside approved explosion-proof
enclosures, or installed inside approved purged and pressurized
enclosures.
Division 2 Locations
••••
Class I volatile flammable liquids or flammable gasses are handled,
processed, or used, but confined within closed containers or closed
systems from which they can escape only in cases of accidental rupture
or breakdown of such enclosures or systems, or in case of abnormal
operation of equipment.
••••
Ignitable concentrations of Class I vapors or gasses are normally
prevented by positive mechanical ventilation, but which may become
hazardous due to mechanical failure of those ventilation systems.
••••
Location is adjacent to a Division 1 location.
••••
Class II combustible dust is not normally in the air in quantities sufficient
to produce explosive or ignitable mixtures. Dust accumulations are
normally insufficient to interfere with normal operation of electrical
equipment or other apparatus. Combustible dust may be in suspension
in the air as a result of the following: infrequent malfunctioning of
handling or processing equipment; combustible dust accumulations on,
or in the vicinity of electrical equipment; may be ignitable by abnormal
operation or failure of electrical equipment.
