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GEK-95352
6
III. INSTALLATION
Installation should be in accor-
dance with the National Electri-
cal Code and consistent with
sound local practices. Coupling
guards should be installed as
needed to protect against acci-
dental contact with moving parts. Machines
accessible to personnel should be further
guarded by screening, guard rails, or other suit-
able enclosure to prevent anyone from coming
in contact with the equipment. This is especially
important for motors that are remotely or auto-
matically controlled or have automatic re-
setting overload relays, since such motors may
start unexpectedly. Failure to observe these
precautions may result in injury or death to per-
sonnel.
A. Location and Mounting
Allow enough space around the motor to
permit free flow of ventilating air and to
maintain an ambient temperature not over
40° C. Where a choice of locations is pos-
sible, install the motor so that it will be
subjected to the least amount of dirt, dust,
liquids, or other harmful materials. Mount
the motor securely on a level, firm foun-
dation, align accurately with the driven
equipment, and tighten mounting bolts
securely.
Weather-Protected Type I motors may be
installed in indoor locations with rela-
tively high moisture content or sheltered
outdoor locations in dry climates.
Weather-Protected Type II motors may be
installed outdoors. Use filters in unclean
areas.
If ignitable dust or lint is pres-
ent the surface temperature of
space heaters, if supplied,
should not exceed 80% of the
ignition temperature. Refer to
space heater nameplate or fac-
tory for information on surface temperature.
Dust and-or lint should not be allowed to build
up around the surface of space heaters. Fail-
ure to observe these precautions may result in
damage to equipment, injury to personnel or
both.
A. Pump and System Precautions
Some precautions are necessary to assure
satisfactory operation of motors in
pumping service. The packing gland in
the pump head should be kept in good
condition so that the liquid being pumped
will not be forced out along the shaft and
enter the motor through the lower bearing
housing.
Motors driving pumps in pressure sys-
tems where the pressure is maintained
after shutdown should be protected from
over speeding by check valves, or non-
reverse couplings.
Installation of the machine
where hazardous, flammable, or
combustible vapors or dusts
present a possibility of explo-
sion or fire should be in accor-
dance with the National Electri-
cal Code, Articles 500-503, and consistent with
sound local practices. Extreme care is required
for machines supplied with an explosion-proof
or dust-ignition proof accessory device or con-
duit box since any nicks or burrs in the sealing
surfaces during disassembly and reassembly
may destroy the explosion-proof or dust-
ignition proof features. Failure to observe
these precautions may result in damage to the
equipment, injury to personnel, or both.