9
I N D O O R I N S TA L L AT I O N
Crane — Using a spreader bar and either chains
or slings connected to the shipping channel
extensions (provided upon request), lift carefully,
taking into account the center of gravity. Once
located, final positioning can be done with a
forklift. When using either chains or wire rope
slings, place a wooden 4" × 4" block between the
equipment and the sling to protect the equipment
from damage.
Jacks and Rollers — Raise the frames with jacks
located at the corners of the shipping bases and
move on steel pipe rollers with the shipping bases
attached.
Notice: Use of fork lift trucks for jacking or placing
the jacks other than as described may result in
stress distortions and irreparable damage to
the equipment.
Removal of the shipping base
Once the units are in their final place, the shipping
bases can be removed.
Open the equipment doors. Remove the bolts
holding each of the three shipping bases to the
equipment. If circuit breakers were installed for
shipment, the lower position breakers will need
to be removed prior to this step.
Close and secure all doors and panels. Raise the
units to a height that allows removal of the base.
Use four jacks located at each corner of the
shipping split, just inside of the shipping bases
for this operation. Keep the units uniformly level
to prevent distortion.
Select four pieces of wood thick enough to permit
removal of the jack after lowering. Place one under
each corner. Slowly lower one side until it rests on
the pieces of wood. Repeat this process on the
other side.
Use a pry-bar to lift each corner enough to remove
the four pieces of wood.
Attaching to the floor
Following the removal of the shipping bases, the
switchgear units should be secured to the floor
either by bolting per the guidelines outlined on the
ABB factory drawings or welding. Equipment
installed in seismic areas has special anchoring
requirements.
Connections
Danger: De-energize the primary
cables and properly ground the
equipment before making primary
source connections.
Bolt separate frames together. Reconnect the main
bus and control wiring at the shipping splits. Install
appropriate joint covers as required. Follow the
connection diagram when replacing secondary and
control wiring.
Bolted joints must be torqued per the values in
appendix A – target torque values.
Complete all internal connections. Make the
external connections to control power sources
and circuits, to secondary and potential circuits,
to feeders, power sources and to ground.
Temporary jumpers protect against voltages that
may occur if the current transformer primaries
carry currents while the secondary circuits are still
not complete. With the secondary circuits
connected, remove the jumpers (figure 6).
Warning: Ground bus connections
should not penetrate any part of
the switchgear not intended for
cable or bus entrance.
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