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AKD-20 AR / Entellisys AR Low-voltage Switchgear
Section 4. Equipment Installation
Section 4. Equipment Installation
General
This section contains complete instructions for installing
General Electric AKD-20 AR and Entellisys AR low-voltage
switchgear.
All expendable hardware for shipping purposes only, is
painted yellow or tagged with yellow adhesive tape and may
be discarded at completion of the installation phase.
CAUTION: Personnel installing this equipment must be
thoroughly familiar with this instruction manual and all
articles of the National Electrical Code applicable to the
installation of this switchgear. In addition, all drawings,
both mechanical installation and electrical, must be
understood and strictly followed to prevent damage to the
switchgear or equipment being protected by the
switchgear.
NOTICE: Before installation work is started, it is important
to review all of the drawings provided, including the
General Electric equipment arrangement drawings, site
installation drawings, elementary and remote connection
drawings, mechanical connection drawings, and the
summary of equipment list.
Site Location
In general, the location of the switchgear equipment will have
been predetermined during the specification and/or
procurement of equipment phases. Indoor locations within
buildings impose certain requirements which must be met so
that the switchgear may operate efficiently with a minimum
of maintenance.
In locating the switchgear, adequate aisle space must be
provided at the front and rear of the equipment to ensure
proper ventilation of the equipment and to allow service and
maintenance of the equipment with the front and rear doors
open. The recommended aisle space is shown on the floor
plan supplied with the equipment drawings.
The switchgear equipment should be placed in an area where
clean, dry air is free to circulate around and above it. Since
air is taken into the equipment at the bottom of each section
and exhausted at the top, a location with good airflow must
be provided for efficient operation. A minimum of 30 inches
of clear space above the equipment is recommended.
21
Courtesy of NationalSwitchgear.com
Foundation Requirements
For optimum performance of your General Electric switchgear
equipment, the foundation requirements expressed in this
section should be strictly adhered to.
The foundation must be strong enough to prevent sagging
due to the weight of the switchgear structure and to
withstand the shock stress caused by the opening of the
breakers under fault conditions. The shock loading is
approximately 1-1/2 times the static load.
The foundation must be flat and level in all planes. Refer to
Figure 4.1 for definition of flat and level.
Figure 4.1 Definition of flat and level
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DEH-41473
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