10
2. Regulatory and safety requirements
WARNING
Potential risks can be drastically reduced by wearing the Personal Protective Equipment listed in this chapter, which are
indispensable. Always operate with due care around dangerous areas marked by the appropriate warning notices on the
equipment.
2.6
General warnings
DANGER
The UPS works with dangerous voltages. Only skilled technicians qualified and authorized by LEGRAND 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 and the external battery cabinet, if present, 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.
Disconnect all battery drawers and external battery cabinets before performing any installation and/or maintenance
operation.
WARNING
A battery can present a risk of electrical shock and burns by high short-circuit circuit current. Failed batteries can reach
temperatures that exceed the burn thresholds for touchable surfaces. 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 sup-
plies not having a grounded supply circuit).
g) never leave live cable terminals without an insulated protection.
h) When replacing batteries, replace with the same type and number of batteries or battery packs. There is the risk of
explosion if batteries are replaced by an incorrect type.
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.
INDICATION
The UPS functions with TT, IT, TN-C and TN-S systems. Input and output neutral are referenced to the same neutral poten-
tial: the output neutral status is the same as the input neutral status.
When the output load needs a different neutral status, it is necessary to place downstream of the UPS a suitably scaled
isolation transformer that must be protected in compliance with the standards in force.
CAUTION
Do not open the battery fuse holders while the UPS is powering the loads in battery mode.
Summary of Contents for Keor MOD 100
Page 1: ...Part LE11406AB 04 19 01 GF Keor MOD Installation and maintenance manual ...
Page 2: ...2 EN ENGLISH 3 Keor MOD ...
Page 20: ...20 4 Installation 3 4 5 ...
Page 22: ...22 4 Installation 9 10 ...
Page 24: ...24 4 Installation KEOR MOD 250 earthing bars ...
Page 79: ...Keor MOD Installation and maintenance manual 79 6 3 3 Removal of the SSS drawer 1 2 3 4 ...
Page 87: ...Keor MOD Installation and maintenance manual 87 ...
Page 88: ...88 9 Mechanical characteristics ...
Page 89: ...Keor MOD Installation and maintenance manual 89 ...
Page 90: ...90 9 Mechanical characteristics ...
Page 92: ...92 9 Mechanical characteristics 9 3 Battery drawer all the dimensions are in mm ...