GE Industrial Solutions AKD-20 Low Voltage Switchgear - Manuel (Page 29)

AKD-20 Low Voltage Switchgear
Chapter 4. Equipment Installation
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The floor channels under the front and rear switchgear anchor
points (see Fig. 4-2) should be embedded in a level concrete slab
with their top surfaces flush with the finished floor. It is essential
that these steel channels be level and aligned with each other prior
to final anchoring, to prevent distortion of the switchgear structure,
to assure proper mechanical and electrical connections between
shipping splits, and to
assure proper interfacing to other close-coupled equipment.
AKD-20 Switchgear and Load Center Substations are frequently
mounted on steel floors and/or structural steel in industrial
installations (such as a mezzanine) to minimize usage of production
floor space. Regardless of the type of mounting surface, the
requirements for a smooth level surface remain.
Fig 4-2. Indoor enclosure - location of equipment anchor points
If studs or anchor bolts are to be used, they should be installed in
the foundation as it is poured. It is important that the studs or bolts
are spaced to agree with dimensions given on the General Electric
job drawings. The dimensions between anchor bolts for a particular
installation are dependent upon the configuration of equipment
ordered. The dimensions shown on Fig. 4-2 cover all of the
standard enclosures available for AKD-20 Switchgear.
Figure 4-3 illustrates the space available for conduit and/or cable
entrance through the bottom or top of each equipment section. The
space required for control wiring entry to the optional wiring trough
is also shown.
Embedded channels (if
used)
3 3 2 2