16
R E LI AG E A R LV MCC
LO W VO LTAG E M OTO R CO N T R O L C EN T ER
Installation of flooring
For most installations, the MCC floor sills can rest
on the finished floor. The foundation for the
equipment should be level and flat in all planes.
Refer fig. 25 for definition of flat and level.
Although not normally required, the purchaser may
elect to install, level and grout the stel members or
MCC floor sills in the floor, as illustrated in Fig. 26
and Fig. 27.
If the floor sills are removed, lifting and moving the
shipping sections must be done carefully.
—
26
—
25
—
25
Control center floor sills
grouted to the floor
before installation to
provide a level foundation
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 for the specific 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 50 foot-
pounds, located in each of the four corners in
each section.
—
27
—
26
Installing steel
floor members
—
27
Installing steel
floor members
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 26
illustrates this point.
Note the front alignment of the 13-inch-deep
section.
CAUTION
NOTICE
NOTICE
WARNING
Plane #1
Plumb line
Perpendicular
on both
axis to within
25" over
10' span
Plane #2
.062
Surface of pad
Содержание ReliaGear LV MCC
Страница 1: ...INSTALLATION OPER ATIONS AND MAINTENANCE MANUAL ReliaGear LV MCC Low voltage motor control center ...
Страница 2: ......
Страница 55: ......