2
can reasonably be expected to cause the failure of the life-sustaining equipment or to significantly affect its
safety or effectiveness is not recommended. Do not use this equipment in the presence of a flammable
mixture with air, oxygen or nitrous oxide
.
•
Connect grounding terminal of UPS to a grounding electrode conductor.
•
In accordance with safety standard EN-IEC 62040-1, installation has to be provided with a
《
Backfeed
Protection
》
system, as for example a contactor, which will prevent the appearance of voltage or dangerous
energy in the input mains during a mains fault (see figure 24 and respect the wiring diagram of «Backfeed
Protection» depending if the equipment is with signal or three phase input).
There can be no derivation in the line that goes from the «Backfeed Protection» to the UPS, as the
standard safety would be infringed.
•
Warning labels should be placed on all primary power switches installed in places away from the unit to alert
the electrical maintenance personnel of the presence of a UPS in the circuit. The label will bear the following
or an equivalent text:
1-5. Operation
⚠
Do not disconnect the grounding conductor cable on the UPS or the building wiring terminals under any
circumstance.
⚠
The UPS system features its own, internal current source (batteries). The UPS output sockets or output
terminal blocks may be electrically live even if the UPS system is not connected to the building mains/live
wires. (only for standard models)
⚠
In order to fully disconnect the UPS system, first press the “OFF” button and then disconnect the mains/live
wires.
⚠
Ensure that no liquid or other foreign objects can enter into the UPS system.
⚠
The UPS can be operated by any individuals with no previous experience.
1-6. Standards
* Safety
IEC/EN 62040-1
* EMI
Conducted Emission :IEC/EN 62040-2
Category C3
Radiated Emission :IEC/EN 62040-2
Category C3
*EMS
ESD :IEC/EN 61000-4-2
Level 4
SURGE :IEC/EN 61000-4-5
Level 4
RS :IEC/EN 61000-4-3
Level 3
CS :IEC/EN 61000-4-6
Level 3
EFT :IEC/EN 61000-4-4
Level 4
Power-frequency Magnetic field :IEC/EN
61000-4-8
Level 4
Low Frequency Signals IEC/EN 61000-2-2
Warning:
This is a product for commercial and industrial application in the second environment-installation restrictions
or additional measures may be needed to prevent disturbances.
Before working on this circuit
-
Isolate Uninterruptible Power Supply (UPS)
-
Then check for Hazardous Voltage between all terminals including the
protected earth
Risk of Voltage Backfeed
