Global Power Technologies
1120 - Class I, Division 2, Group D, T3
Generator System:
The system consisting of the generator including its factory options, the
power conditioner including its factory options, and the special customer options.
Safe Operation, Operate Safely, Operating Safely
: These are terms used to describe the
operation of the 1120 Generating System, when its operating area or zone, should suddenly or
gradually go hazardous towards or beyond the lower explosive limit (LEL). The generator will
either operate at reduced power or extinguish completely due to lack of oxygen. The generator
system will not, either while running or attempting to be ignited, ignite the surrounding hazard-
ous atmosphere. If the operating area should clear within a short period of time the generator
will attempt to reignite itself. See short term auto ignition.
Short Term Auto Ignition
: The generators high voltage ignition system will automatically
come on to reignite itself in the event of a flame failure due to either a blow out or short dura-
tion gas failure. Fuel gas must be present and the shut off valve must not have operated for
the auto reignition to occur.
Hazardous Area:
(definition per Canadian Electrical Code, Part 1, Section 18)
18-002 Classification: Hazardous locations shall be classified according to the nature of the
hazard, as follows:
a)
Class I locations are those in which flammable gases or vapours are or may be sufficient
to produce explosive or ignitible mixtures;
b)
Class II locations are those which are hazardous because of the presence of combusti-
ble or electrically conductive dusts;
c)
Class III locations are those which are hazardous because of the presence of easily
ignitible fibers or flyings, but in which such fibers or flyings are not likely to be in suspen-
sion in air in quantities sufficient to produce ignitible mixtures.
18-004 Division of Class I locations: Class I locations shall be further divided into two divisions
as follows:
a)
Division 1, comprising Class I locations in which:
(i)
Hazardous concentrations of flammable gases or vapours exist continuously,
intermittently, or periodically under normal operating conditions; or
(ii)
Hazardous concentrations of flammable gases or vapours may exist frequently
because of repair or maintenance operation or because of leakage; or
(iii)
Equipment is operated or processes carried on of such nature that breakdown or
faulty operation thereof could result in the release of hazardous concentrations of
flammable gases or vapours and simultaneous failure of electrical equipment;
b)
Division 2, comprising Class I locations in which:
2