GE Industrial Solutions Evolution Series E9000 - Manual (Page 7)

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Evolution Series E9000 Installation & Maintenance Guide
Chapter 3 – Installation
Installation of Bottom Entry Conduits
Conduits can be stubbed in after the location of the
motor control center lineup has been established. Conduit
should be stubbed approximately 2 inches (51mm)
above the finished floor line. Figure 6 and Figure 7 show
the conduit entrance space available at the bottom of
standard sections. Exceptions to this available space rule
are indicated on drawings furnished by GE for specific
installations. Center the conduit beneath the section
vertical wireway to facilitate direct cable entry. Note:
Bottom rear entrance should only be used with full
rear accessibility.
Figure 6A. Bottom conduit entrance details for standard 13-inch
deep section, low bus position.
Figure 6B. Bottom conduit entrance details for standard 13-inch
deep section, bus upper position.
Figure 6C. Bottom conduit entrance for standard 20-inch deep
section, low bus position, 6-inch bottom cover.
Figure 6D. Bottom conduit entrance details for standard 20-inch
deep section, bus upper position.
Figure 7A. Low bus position of ground and neutral bus (minimum
available space for conduit entry) in 13-inch deep section, 6-inch cover.
Figure 7B. Standard position of ground and neutral bus with 12-inch
cover compartment at the bottom of MCC.
Before any installation work is begun, consult all
drawings furnished by the General Electric Company
as well as all applicable contract drawings for the
particular installation. Pay particular attention to the
location of units in the motor control center and their
relations to existing or planned conduits and busways.