Installation Of Flooring - GE Evolution Series E9000 User Manual

Evolution Series E9000 User Manual
Figure 7C. Low bus position of ground and neutral bus (minimum
available space for conduit entry) in 13-inch deep section, 6-inch cover
Figure 7D. Upper position of ground and neutral bus (maximum
space available for conduit entry), 6-inch bottom cover

Installation of Flooring

For most installations, the MCC oor sills can rest on the
nished oor. The foundation for the equipment should
be level and even. Although not normally required, the
purchaser may elect to install, level and grout the steel
members or MCC oor sills in the oor, as illustrated in
Figure 8 and Figure 9. If the oor sills are removed, lifting
and moving the shipping sections must be done carefully.
Figure 8. Control center oor sills grouted to the oor before
installation to provide a level foundation
Note: Cannot be rolled (as in Figure 5) without oor sills
Surface under motor control center base must
be of non-combustible material unless bottom
covers are installed in each vertical section.
The overall height of the equipment should be considered
with respect to headroom, top conduit entry space and
alignment with other equipment.
Note:
• If anchor bolts are to be imbedded in the foundation,
they must be located according to the drawing furnished
by GE for the speci c equipment. Locate one in the
center front and one in the center back. Anchor bolts
should be 1/2" in diameter, of Grade 2 steel (minimum)
in non-seismic locations. Bolts must extend a minimum
of 2 11/32" above grade to 3/4" above the channel
sill. If 13" (330.2mm) deep sections are used, anchor
bolts or some form of external bracing is required.
• Seismic Zone 4/IBC testing was performed using 1/2" –
13 Grade 5 bolts, torqued to 70 foot-pounds, located in
each of the four corners in each section.
If there are vertical sections of varying depths
(such as 13, 20, or 22 inches) in a single lineup,
the fronts of the sections must be lined up for
proper alignment of the main bus bars.
Figure 9 illustrates this point..
Figure 9. Installing steel oor members
Note the front alignment of the 13-inch-deep section
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