5
I.B. 8926-1A
Figure 3 Correct Use Of Lifting Angle
5. After removing the lifting angles, replace the
mounting hardware to prevent the entrance of dirt,
etc.
FORK-LIFT TRUCK
Motor control centers are normally top and front
heavy. Balance the load carefully and steady, as
necessary, while moving.
Always use a safety
strap when handling with a fork-lift.
ROLLERS
Rod or pipe rollers, with the aid of pinch bars,
provide a simple method of moving the motor control
center on one floor level, if there is no significant
incline. Roll the motor control center slowly, and
steady the load to prevent tipping.
STORAGE
When a motor control center cannot be installed and
placed into operation immediately upon receipt, take
steps to prevent damage by condensation or harsh
environmental conditions. If the motor control center
cannot be installed in its final location, store it in a
clean, dry, ventilated building, heated to prevent
condensation, and protected from dirt, dust, water,
and mechanical damage. When storage conditions
are less than ideal, install temporary electrical
heating, typically in the form of light bulbs, totaling
150 watts per section, hung in the vertical wireway,
or by applying power to self-contained space
heaters that the motor control center may be
equipped with. Remove all loose packing and
flammable materials before energizing any of the
heating elements.
Part 3
INSTALLING CONTROL CENTER SECTIONS
GENERAL
Freedom Series 2100 Motor Control Centers
(MCC’s) are designed for installation in accordance
with both the
National Electrical code (NEC), NFPA
70,
and the
National Electrical Safety Code (NESC),
ANSI C2.
Caution – If work is involved in connecting the
control center with existing equipment, ensure
that incoming power is disconnected before
work is begun. Disconnecting means should be
locked out and/or tagged out of service. Where it
is not feasible to de-energize the system, the
following precautions should be taken:
A) Persons working near exposed parts that are or
may be energized should be instructed and should
use practices (including appropriate apparel,
equipment, and tools) in accordance with the NESC.
B) Persons working on exposed parts that are or
may be energized should, in addition, be qualified
persons who have been trained to work on
energized circuits.
INSTALLATION
1. Before any installation work is begun, consult all
drawings furnished by Cutler-Hammer as well as
all applicable contract drawings for the
installation. Give particular attention to the
physical location of units in the control center
and their relation to existing or planned conduit,
busways, etc. Provide for future conduit
entrance prior to control center installation.
2. Locate the control center in the area shown on
the building floor plans. If in a wet location or
outside of the building, protect the control center
from water entering or accumulation within the
enclosure. Recommended clearances or
working spaces are as follows:
a) Clearance from walls (where not rear
accessible) – a minimum of ½ inch for
indoor and 6 inches for outdoor or wet
locations.
b) Clearance from front of MCC (working
space) – minimum of 3 feet for control
centers without exposed live parts. See NEC
110-16d. NOTE: This working space should
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