TP482000B V300R002C03 Telecom Power
(TP482000B-N20B1, TP482000B-N20B2,
TP481200B-N20B1, and TP481200B-N20B2)
User Manual
D Maintenance Record Forms
Issue 07 (2020-04-10)
Copyright © Huawei Technologies Co., Ltd.
96
No.
Maintenance Item
Result
Measure
2
The SPD circuit breaker
is intact and ON.
□ ON
□ OFF
□ Replace the circuit
breaker.
□ Switch on the circuit
breaker.
□ Others________
3
AC input undervoltage
does not occur.
Minimum AC voltage:
____ V AC
□ Passed
□ Failed
□ Reduce the cable length,
or thicken the cable.
□ Secure cable connections.
□ Provide the voltage data
to the power supplier.
□ Others________
4
AC input overvoltage
does not occur.
Maximum AC voltage:
____ V AC
□ Passed
□ Failed
□ Provide the voltage data
to the power supplier.
□ Others________
5
The AC input voltage is
not open-phase.
□ Passed
□ Failed
□ Change the cables.
□ Provide the voltage data
to the power supplier.
□ Others________
6
The DC output circuit
breaker is ON, and the
fuse is intact.
□ Passed
□ Failed
□ Rectify load faults.
□ Switch on the circuit
breaker.
□ Replace the circuit
breaker.
□ Replace the fuse.
□ Others________
7
DC busbar overvoltage
does not occur.
Busbar voltage: ____ V
DC
□ Passed
□ Failed
□ Replace the rectifier.
□ Others________
8
DC busbar undervoltage
does not occur.
Busbar voltage: ____ V
DC
□ Passed
□ Failed
□ Resume the AC power
supply.
□ Check the load status,
and rectify faults.
□ Replace the rectifier.
□ Others________
9
The DC busbar
temperature does not
exceed 95°C at the room
temperature.
Busbar temperature:
____°C
□ Passed
□ Failed
□ Secure busbar
connections.
□ Check the load status,
and rectify faults.
□ Others________
