UPS Electrical Installation
Liebert
®
e
XL
™
8
2.0
UPS E
LECTRICAL
I
NSTALLATION
This chapter provides guidelines for qualified installers who must have knowledge of local wiring
practices pertaining to the equipment to be installed.
2.1
External Protective Devices
For safety, circuit breakers must be installed in the input AC supply and external battery system.
Given that every installation has its own characteristics, this section provides guidelines for qualified
installation personnel with knowledge of operating practices, regulatory standards and the
equipment to be installed.
External overcurrent protection must be provided. See
and
for overload capacity.
2.2
Power Cables
The UPS requires both power and control cabling. All control cables, whether shielded or not, should
be run separately from the power cables in metal conduits or metal ducts that are electrically bonded
to the metalwork of the cabinets to which they are connected.
The cable design must comply with the voltages and currents in
, follow local
wiring practices and take into consideration the environmental conditions (temperature and physical
support media), room temperature and conditions of installation of the cable and system’s overload
When sizing battery cables, a maximum voltage drop of 2VDC is permissible at the current ratings
given in
!
WARNING
Risk of electrical shock. Can cause injury or death.
The UPS contains high DC as well as AC voltages. Check for voltage with both AC and DC
voltmeters before working within the UPS.
Only properly trained and qualified personnel wearing appropriate safety headgear, gloves,
shoes and glasses should be involved in installing the UPS or preparing the UPS for
installation.
!
AVERTISSEMENT
Risque de décharge électrique pouvant causer des blessures graves, voire mortelles.
Le système ASC contient des tensions c.c. et c.a. élevées. Vérifiez les tensions au moyen de
voltmètres c.a. et c.c. avant d’utiliser le système ASC.
Seuls des employés qualifiés et dûment formés portant un casque, des gants, des chaussures
et des lunettes de sécurité adéquats doivent se charger d’installer le système ASC ou de le
préparer pour l’installation.
!
WARNING
Risk of electrical shock. Can cause injury or death.
Before cabling the UPS, ensure that you are aware of the location and operation of the
external isolators that connect the UPS input/bypass supply to the power distribution panel.
Check that these supplies are electrically isolated, and post any necessary warning signs to
prevent their inadvertent operation.
!
AVERTISSEMENT
Risque de décharge électrique pouvant causer des blessures graves, voire mortelles.
Avant de procéder au câblage du système ASC, assurez-vous que vous êtes au courant de
l’emplacement et du fonctionnement des isolateurs externes qui raccordent l’alimentation
d’entrée ou de dérivation au panneau de distribution électrique.
Vérifiez que ces raccords sont isolés électriquement et installez tous les panneaux
d’avertissement nécessaires pour empêcher leur utilisation accidentelle.
