UPS2000-G-(1 kVA-3 kVA)
User Manual (2016, Russia)
1 Precautions
Issue 02 (2016-07-28)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
3
1.6 Servicing, Maintenance, and Troubleshooting
Since the UPS uses dangerous voltages, only qualified personnel are allowed to maintain
the UPS.
Before any maintenance or servicing, remove embedded batteries and ensure that no
current exists, especially that no voltage exists between bus capacitors.
Batteries are allowed to be replaced only by or under the instructions of the personnel
that are familiar with batteries under safe conditions. Unauthorized personnel are not
allowed to get close to batteries.
Batteries may generate an extremely high short-circuit current due to short circuits.
Therefore, take the following preventive measures before maintaining batteries:
−
Remove any metal objects from yourself, such as watches and rings.
−
Use only insulated tools.
When replacing batteries, install the batteries of the same quantity and model as the old
ones.
Do not throw batteries into fire, which may cause explosion.
Do not break down or damage batteries. The electrolyte will damage your skin and eyes
once it leaks.
When replacing fuses, use the fuses with the same model and specifications as the old
ones to avoid fire disaster.
Do not disassemble the UPS.
Electric shock risk. The UPS is still energized even if it is disconnected from the socket,
because its internal components are still connected to embedded batteries.
Electric shock risk. The battery circuit is not disconnected from the input voltage. It is
possible to have a dangerous voltage between the battery terminal and the ground cable.
Therefore, ensure that no voltage exists before touching the UPS interior.