User manual

Seite 51 von 128
Connection / Electrical safety
• Never work alone in dangerous conditions.
• Always ensure that plugs, socket outlets and input cables
are in good working order.
• Connect the UPS system only to an earthed socket outlet.
• Ensure maximum current draw and that the building wiring
is adequately fused.
• The building wiring socket outlet (with earthing contact)
must be easily accessible and close to the UPS system.
• Only use VDE-tested and CE-marked connecting cables.
• As specified by the EMC Directive, the output cable con-
nected to the UPS must not exceed a length of 10m.
• Do not connect household appliances such as hair dryers
to UPS output sockets.
• Do not connect any appliances to UPS output sockets
which will overload the UPS (e.g. laser printers).
• Lay cables in such a way that no one can step on or trip
over them.
Operation
• Do not disconnect the mains cable from the UPS system or
the building wiring socket outlet (with earthing contact) dur-
ing operation, since this would cancel the protective
earthing of the UPS system and of all connected loads.
• The UPS system features its own, internal current source
(batteries). The UPS output sockets may be electrically live
even if the UPS system is not connected to the socket out-
let / the building wiring supply.
• In order to fully disconnect the UPS system, first press and
hold down the OFF button for at least 2 seconds, then dis-
connect the mains lead.
• Ensure that no fluids or other foreign objects can enter the
UPS system.