Seismically Certified Equipment; Conduits - GE ABB ReliaGear SB Installation, Operation And Maintenance Manual

R E L I A G E A R ® S B S W I TC H B O A R D S
10
—

Seismically certified equipment

08
For seismically certified switchboards of IBC-2018
Installation of seismically
certified switchboards
and IEEE-693-2018, follow the previous instructions
without floor sills
with the following modifications. Locate the
—
seismic kit shipped with each section before
09
Alternate installation installation. The kit for each section is located at
of seismically certified
the rear of the switchboard section attached to
switchboards
without floor sills the horizontal bus. The kit should contain four
1-inch spacers per section. These spacers should
—
10
be installed around the four ½"-13 Grade 5 bolts as
Installation of
shown in Figure 8 or Figure 9 for switchboards
seismically certified
switchboards
without floor sills. When floor channels are used,
with floor sills
these spacers should be installed as shown in
Figure 10.
—
08
—
09
½-13 Nut
½ Lock washer
Spacer 1 Inch long
—
10
½-13 Threaded
rod; min. legth 1.75 inch

Conduits

When the foundation channels are being installed,
any conduits or sleeves required for power and
control cables that are to enter the equipment
½-13 Threaded
rod; min. legth 1.75 inch
from underneath should be located and installed
within the available space shown on the floor-plan
½ Lock washer
drawings. Consider installing conduits or sleeves
Spacer 1 Inch long
that might be required for future connections also.
Floor line
Conduit stubs should extend above the floor
enough to prevent water from entering. Conduits
should only be installed within the marked conduit
areas of the manufacturer's drawings in order to
comply with NEC wire bending space requirements.
Conduit sleeves should be installed only after the
½-13 Bolt;
min. legth 1.50 inch
switchboard is in place as they may interfere with
½ Lock washer
placement of the switchboard.
The lowest live metal part in the switchboard will
be approximately 8 inches above the bottom of the
switchboard (not including floor sills), according to
Spacer 1 Inch long
NEC Table 408.5. Conduits, including the conduit
sleeves, cannot extend more than 3 inches above
½-13 Sleeve anchor
set in concrete slab
the bottom of the enclosure according to NEC
408.5. Note that the switchboard must be lifted
½-13 Bolt;
over any conduit stubs previously installed in
min. legth 1.50 inch
the foundation. Terminate the conduits at the
Spacer 1 Inch long
switchboard with the appropriate conduit
½ Lock washer
connectors, sized according to NEC requirements.
Floor line
Conduits may require grounding or electrical
½-13 Sleeve anchor connection to the switchboard controller. Before
set in concrete slab
cabling, ensure that the markings on the cable
comply with markings on the switchboard.
½-13 Bolt;
min. legth 1.50inch
½ Lock washer
Spacer 1 Inch long
Floor sill, top placed
even with concrete slab
Spacer 1 Inch long
½-13 Bolt;
min. legth 1.50 inch
½ Lock washer
Floor line
Floor sill with
½-13 pressed nut