Conformity and standards
1. The UPS complies with 2006/95/EC (LV Safety) and 2004/108/EC (EMC), and with the following product standards for
UPS:
IEC62040-1: 2008 General and safety requirements
IEC62040-2: EMC requirements, Class C2 compliant
IEC62040-3: Performance requirements and test methods
2. The UPS installation should follow the above instructions and use the accessories specified by manufacturer.
Warning: high leakage current
1. Reliable earth connection is essential before the input power (AC mains and battery included) is connected.
2. Earth leakage current is bigger than 3.5mA, and less than 5% of the input current.
3. Transient and steady-state earth leakage currents, which may occur when starting the equipment, should be taken into
account when selecting instantaneous residual current circuit breaker (RCCB) or residual current detector (RCD).
4. Note that the earth leakage current of the load will be carried by RCCB or RCD.
5. This equipment must be earthed in accordance with the local electrical codes.
Warning: backfeed voltage
Before operating the circuit, isolate the UPS firstly, and then check the dangerous voltage between the ports, and that
between the ports and earth.
Maintainable components
1. All internal maintenance and servicing procedures of the equipment should be carried out only by trained personnel with a
tool. Components behind the protective cover which can only be removed by using a tool are restricted to service personnel.
2. The UPS meets the safety requirements completely in operator access area. Only service personnel can contact the
hazardous voltage inside the UPS. However, the risk of contacting these voltages is minimized because the components with
hazardous voltage may be contacted only by using a tool to remove the protective cover. No risk will exist if you follow the
general norms and the procedures recommended in this manual on equipment operation.
Warning: battery high voltage
1. All the service and maintenance of the battery are performed by the trained technicians.
2. Operation on the battery will result in electric shock and high short-circuit current, therefore, before operating the battery,
the following should be observed:
Remove the watches, rings and other metal objects.
Use the tools with insulation handle.
Wear rubber glove and shoes.
Avoid placing the tools and metal objects on the battery surface.
Cut off the charge power supply before connecting or disconnecting the battery terminals.
Check whether the battery is grounded accidently, if yes, please disconnect the grounding. Contacting any grounded
battery parts will result in electric shock. Therefore, make sure that the battery is not grounded during installation and
maintenance.
3. Battery manufacturers provide the details of the precautions to be observed when working on, or in the vicinity of the
batteries. These precautions should be followed implicitly at all times. Attention should be paid to the recommendations
concerning local environmental conditions and the provision of protective clothing, first aid and fire-fighting facilities.
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