FusionModule800 Smart Small Data Center
Maintenance Guide
A Preventive Maintenance Table
Issue 02 (2016-11-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
134
Maintenance area
Item
Operation
Expected Result
Troubleshootin
g
Circuit breakers after
power-off
Switch on or off the
circuit breakers.
The circuit
breakers are
switched on and
off smoothly for
five times.
If the circuit
breaker cannot be
switched on or off
smoothly, perform
the following
operations:
If there is a
spare circuit
breaker,
connect cables
to it.
If there is no
spare circuit
breaker,
replace the
power
distribution
subrack by
referring to
5.2.5
Replacing a
Power
Distribution
Subrack
Cable insulation
performance after
power-off
Measure the
insulation resistance
using an insulation
tester.
The insulation
resistance is greater
than or equal to 5
megohms.
If the cable
insulation
performance is
poor, replace the
cable.
Insulation
performance of the
power distribution
subrack after
power-off
Measure the
insulation resistance
using an insulation
tester.
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 after power-off
Measure the
insulation resistance
using an insulation
tester.
The insulation
resistance is greater
than or equal to 2
megohms.
If the insulation
performance is
poor, check and
maintain the
signal cable,
emergency fan,
and smart ETH
gateway.