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Maintenance
Area
Maintenance
Item
Operation
Expected Result Troubleshootin
g
Circuit breaker
Switch on or off
the circuit
breaker after
powering off the
device.
The circuit
breaker is
switched on and
off smoothly for
five times.
If the circuit
breaker cannot
be switched on
or off smoothly
and there is a
spare circuit
breaker, connect
cables to the
spare one.
Cable insulation
performance
Measure the
insulation
resistance using
an insulation
tester after
power-off.
The insulation
resistance is
greater than or
equal to 5
megohms.
If the cable
insulation does
not meet the
requirement,
replace the
power cable.
Insulation
performance of
the power
distribution
subrack
Measure the
insulation
resistance using
an insulation
tester after
power-off.
The insulation
resistance is
greater than or
equal to 10
megohms.
If the insulation
performance is
poor, check and
maintain the
components in
the power
distribution
subrack, such as
internal cables
and circuit
breakers.
Insulation
resistance of the
secondary loop
Measure the
insulation
resistance using
an insulation
tester after
power-off.
The insulation
resistance is
greater than or
equal to 2
megohms.
If the insulation
performance is
poor, check and
maintain the
signal cable and
smart ETH
gateway.
FusionModule500 Smart Mini Data Center
User Manual
6 O&M
Issue 02 (2020-12-25)
Copyright © Huawei Technologies Co., Ltd.
248