Huawei FusionModule500 User Manual page 258

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