GE Industrial Solutions Entellisys Installation - Manual (Page 30)

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Entellisys Low Voltage Switchgear
Chapter 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 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 that 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
Fig. 4-1 for definition of flat and level.
Fig. 4-1. Definition of flat and level
Foundation Preparation
Refer to Fig. 4-2 along with the owner's foundation
construction drawings, and the General Electric supple-
mental 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.