Handling; Indoor Enclosure Lifting - GE AKD-20 AR Installation And Maintenance Manual

Entellisys ar low-voltage switchgear
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DEH-41473

Handling

NOTICE: It is preferable to leave the shipping skids in place
under the switchgear until it reaches its final location. The
equipment should be installed in its final location prior to
installing the circuit breakers.

Indoor Enclosure Lifting

The indoor switchgear sections are best handled by lifting
with a crane (Figure 2.4). Removable lifting plates are
provided, as standard equipment, on the top of each
switchgear section. To preserve the external appearance of
the equipment, it is suggested that the lifting plates be left in
place except where adjacent equipment must be bolted
together, i.e. shipping splits, etc.
Utilize four equal length cables and an overhead crane, each
with a minimum load rating of twice the weight of the
switchgear.
Estimated weights for shipping splits appear on the Front
View drawings.
Example: Switchgear Section Weight = 5,000 pounds. The
crane and the four lift cables must have a minimum load
lifting capacity of 10,000 pounds.
WARNING: The angle between the cables and the top
of the equipment must be at least 45 degrees. If this is not
possible because of lack of headspace, spreader bars must
be used. Also, lift cables with greater load capability may
be necessary, depending upon the angle between the
cables and the crane hook.
Connect a cable from the crane to the four lifting plates
located on the top-front and rear of the switchgear (Figure
2.4).
Take up the slack in the lifting device very carefully and
manually stabilize the switchgear to prevent it from rotating.
DANGER: Do not stand under switchgear while it is
being moved. Serious injury may occur if the cables or
lifting device fail.
CAUTION: Gently lower the switchgear section onto the
level site location. If the switchgear is roughly handled or
jarred, it is possible to damage or misalign internal
components.
WARNING: Be sure to remove all circuit breakers from
their compartments prior to lifting. Failure to remove the
circuit breakers prior to lifting will result in a center of
gravity toward the front of the switchgear assembly and
may require additional rigging and stabilization.
©2016 General Electric. All rights reserved.
Courtesy of NationalSwitchgear.com
AKD-20 AR / Entellisys AR Low-voltage Switchgear
Section 2. Receiving, Handling, and Storage
Figure 2.4 Recommended lifting of indoor enclosure
WARNING LABEL BY EACH LIFTING PLATE
4

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