Section 3: Room Requirements; Floor Requirements; Ceiling, Lateral And Rear Clearance Requirements And Cable Vault Layout - Eaton Power Xpert IGX Instruction Booklet

Instruction Booklet
Instructions for the installation and
IB022023EN
Effective April 20232 commissioning of Power Xpert IGX
Revision #21
medium-voltage switchgear

Section 3: Room requirements

The destination electrical room or Integrated Power Assembly (IPA)
should be kept dry and well ventilated. Indoor operating conditions
for the Power Xpert IGX vertical sections must conform to an
ambient temperature greater than -5 degrees C and less than 40
degrees C., altitude less than 1000 m (consult Eaton representative
for higher altitudes). Ideally, atmospheric conditions within the
switchgear room shall be free of corrosives, smoke, dust, and
flammable vapors.

3.1. Floor requirements

See Figure 9 and project floor plan drawings.
Power Xpert IGX switchgear is designed for installation in an
electrical room over a cable vault, an IPA or power house. It is
very important that the installed lineup be level and flat. Eaton
recommends that the electrical room design include steel rails
embedded in the vault concrete, for mounting the Power Xpert IGX
switchgear. See Figure 10 for details on typical foundation and cable
vault requirements.
Contact Eaton for additional information on cable vault requirements.
The finished foundation surface shall be flat and level within 1 mm
[0.04 in] in 800 mm [31.5 in] in any direction, left to right, front to
back, and diagonally. Alternatively, a local flatness "FF" value of 50
or higher and "FL " value of 37 to 40 as defined in industry standard
ASTM-E1155-96 and higher and an accompanying industry standard
ACI 117-90 may be used to establish the flatness and levelness of
the finished foundation.
It is recommended but not necessary to finish the foundation to
the same requirements in front of the Power Xpert IGX switchgear
assembly in a traffic area defined by the end user. The minimum
recommended foundation anchoring system requirements as noted
in Figure 9 are sufficient to withstand the combined tensile and
overturning reactive forces imposed on the foundation at the Power
Xpert IGX switchgear assembly mounting points during a seismic
event.
Any deviation from these recommendations is the sole responsibility
of the end user.
Consult with a licensed structural or civil engineer if some other
foundation methods are to be considered.
3.2. Ceiling, lateral and rear clearance requirements and
cable vault layout
Refer to the Power Xpert IGX switchgear project installation
drawings for details on the Power Xpert IGX switchgear installation.
Following are some figures included in this document for reference.
Figure 7 shows typical Power Xpert IGX panel dimensions and
ceiling clearance requirements.
Figure 8 shows a top plan view of typical vertical section front and
rear access clearance requirements.
Figure 9 shows a typical Power Xpert IGX base plan with front and
side clearance notes.
Figure 10 shows a typical cable vault foundation diagram.
If low-voltage control or signal wires are being routed in the same
space being utilized to accommodate medium-voltage power cables
connected to the IGX switchgear assembly, then care should be
taken to ensure low-voltage wiring is adequately separated and/
or shielded from medium-voltage conductors to avoid electrical
interference.
12
EATON www.eaton.com/IGX