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I N S TA L L AT I O N , O P ER AT I O N S A N D M A I N T EN A N C E M A N UA L
General
This section contains complete instructions
for installing ReliaGear LV SG voltage switchgear.
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 equipment arrangement drawings,
site installation drawings, elementary and remote
connection drawings, mechanical connection
drawings, and the summary of equipment list.
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.
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.
Foundation requirements
For optimum performance of your switchgear
equipment, the foundation requirements
expressed in this section should be strictly
adhered to.
Notice:
The foundation for the
outdoor switchgear must provide
proper drainage of ground and/or
surface water accumulations away
from the equipment.
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 43 for
definition of flat and level.
Equipment installation
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43
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43
Definition of flat
and level
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