Rectifying Common Faults; Ac Failure - Huawei TP48200A-HT19C4-1 User Manual

TP48200A-HT19C4-1 and TBC300A-TCA2 Telecom
Power
User Manual
Maintenance
Item
Electrical
specifications
Preventive
maintenance
inspection (PMI)
Appearance
Grounding

4.2 Rectifying Common Faults

4.2.1 AC Failure

Possible Causes



Measures
1.
2.
3.
Issue 03 (2019-11-15)
Check Whether Check Method
normally. and the
temperature.
The output voltage Multimeter.
is normal.
Indicators are By observing.
normal.
The paint or
By observing.
electroplated
coating on the
cabinet flakes off or
has scratches.
The ground point By observing the
properly connects grounding and
to the ground bar in using a screwdriver
the equipment or wrench.
room.
The AC input power cable is faulty.
The AC input circuit breaker is OFF.
The power grid is faulty.
Check whether the AC input cable is loose. If so, secure the AC input cable.
Check whether the AC input circuit breaker is OFF. If so, handle the fault which caused
the AC input circuit breaker to turn OFF and then switch on the circuit breaker.
Check whether the AC input voltage is lower than 50 V AC. If so, handle the power grid
fault.
Copyright © Huawei Technologies Co., Ltd.
Repair When Measures
cannot effectively TEC04C.
cool the air.
The battery circuit For details, see 4.2
voltage or load Rectifying
circuit voltage Common Faults
exceeds its
threshold.
An alarm is
generated.
The surface is Repaint or repair
damaged or the shell.
distorted.
The cable Secure the ground
connecting the point or replace the
ground point and cable.
the ground bar in
the equipment room
is loose or
damaged.
4 Maintenance
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