LEGRAND Trimod HE 10, Руководство по установке и обслуживанию

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Trimod HE®
Installa
tion and main
tenanc
e manual
11
WARNING
Potential risks can be drastically reduced by wearing the Personal Protective Equipment listed in this chapter. These
protections are indispensable. Always operate with due care around dangerous areas marked by the appropriate warning
signs on the equipment.
2.6 General warnings
DANGER
The UPS works with dangerous voltages. Only SKILLED TECHNICIANS must perform the installation and ordinary
maintenance operations. No part of the UPS can be repaired by the operator.
Extraordinary maintenance operations must be carried out by LEGRAND Technical Support Service personnel.
DANGER
Before beginning any installation and/or maintenance operation, make sure that all the DC and AC power sources are
disconnected.
The UPS must be installed with an earth connection to avoid high leakage currents. First connect the earthing cable.
Check during each installation and/or maintenance operation the continuity of the earthing system.
DANGER
The UPS is powered by its own DC energy source (batteries). The output terminals may have a dangerous voltage even if
the UPS is not connected to the AC power network.
The DC power source could comprise multiple battery drawers in parallel and/or external battery units. Disconnect all
battery drawers and external battery units before performing any installation and/or maintenance operation.
WARNING
A battery can present a risk of electrical shock and high short circuit current. The following precautions should be
observed when working on batteries:
a) remove watches, rings or other metal objects;
b) use tools with insulated handles;
c) wear rubber gloves and boots;
d) do not lay tools or metal parts on top of batteries;
e) disconnect the charging source prior to connecting or disconnecting battery terminals;
f) determine if battery is inadvertently grounded. If inadvertently grounded, remove source from ground. Contact with
any part of a grounded battery can result in electrical shock. The likelihood of such shock can be reduced if such
grounds are removed during installation and maintenance (applicable to equipment and remote battery supplies not
having a grounded supply circuit).
Do not dispose of batteries in a fire. The batteries may explode.
Do not open or mutilate batteries. Released electrolyte is harmful to the skin and eyes. It may be toxic. The batteries
installed inside the cabinet must be disposed of correctly. For the disposal requirements refer to local laws and relevant
standards.
CAUTION
The UPS functions with TT and TN systems. It has a pass-through neutral architecture: the status of the output neutral
is the same as the input neutral.
When a load needs a different neutral status from the input status, it is necessary to place downstream of the UPS a
suitably scaled isolation transformer protected in compliance with the standards in force.
For electromedical applications which require the medical IT system, it is necessary to have an insulation board
downstream the UPS that ensures compliance with the regulations in force for this type of application.