GE Industrial Solutions Entellisys Low Voltage Switchgear - Manuel (Page 21)

Entellisys Low Voltage Switchgear
21
4. Equipment Installation
4-1 General
This chapter contains complete instructions for installing General
Electric Entellisys Low-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.
ATTENTION: La ou les personnes procédant à l’installation de
cet équipement doivent être tout à fait familier avec ce livre
d’instruction ainsi que tous les articles du Code national
d’électricité s’appliquant à l’installation de ce dispositif de
commutation. De plus, tous les dessins se rapportant tant à
l’installation mécanique qu’électrique doivent être compris et
suivis à la lettre afin de prévenir des dommages au dispositif de
commutation ou à l’équipement protégé par celui-ci.
NOTE: 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.
NOTE: Il est important de reviser tous les dessins fournis,
incluant les dessins de disposition de l’équipement de General
Electric, les dessins d’installation du site, les dessins de
raccords élémentaires et à distance, les dessins de raccords
mécaniques et le sommaire de la liste d’équipement avant que
ne débutent les travaux d’installation.
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 Entellisys 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 General Electric switchgear
equipment, the foundation requirements expressed in this chapter
should be strictly adhered to.
NOTE: The foundation for the outdoor switchgear must
provide proper drainage of ground and/or surface water
accumulations away from the equipment.
NOTE: La fondation du dispositif de commutation situé à
l’intérieur doit être en mesure de drainer correctement les
accumulations d’eau du sol et de surface loin de l’équipement.
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.
Fig. 4-1. Definition of flat and level
Foundation Preparation
Indoor Equipment
Refer to Fig. 4-2 along with the owner's foundation construction
drawings, and the General Electric supplemental installation
drawings. Although the indoor switchgear equipment can be
mounted directly on a smooth, level floor, it is recommended that
recessed steel channels be installed for supporting the equipment.
Anchor bolts and channels are to be provided by the purchaser.