Check Item Expected Result Troubleshooting Maintenance
Interval
Power cables and
terminals
(between the UPS
and the PDF).
The insulation
layers of cables
are intact and
terminals are free
from signs of
sparks.
● Replace cables.
● Secure all
output
terminals.
Quarterly
Grounding Ground cables are
connected
securely.
Tighten the
screws.
Yearly
EPO (if
congured)
The EPO signal
cable is connected
reliably.
Secure all wiring
terminals.
Yearly
Through-current
capacity of cables
and circuit
breakers
The circuit
breakers and
cables meet load
requirements.
The actual cable
through-current
capacity is greater
than the circuit
breaker
specications.
● Replace the
circuit
breakers.
● Replace the
cables.
Yearly
7.2 Battery Maintenance
Before operating batteries, read through the battery user manual, safety
precautions, and correct connection methods provided by the battery
manufacturer.
Before installing and maintaining batteries, pay attention to the following points:
● Wrap tools with insulation tape to prevent electric shock.
● Wear protective goggles and take other necessary protective measures.
● Wear rubber gloves and protective clothing to prevent skin contact with
electrolyte in the case of electrolyte
overow.
● When moving batteries, do not place batteries upside down. Handle them
gently, and pay attention to personal safety.
● Keep the battery switch
o during installation and maintenance.
UPS2000-G-(6 kVA-20 kVA)
User Manual 7 Routine Maintenance
Issue 21 (2022-10-13) Copyright © Huawei Technologies Co., Ltd. 114
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