Maintenance; Routine Maintenance - Huawei ETP4830-A1 User Manual

ETP4830-A1 Embedded Power
User Manual

7.1 Routine Maintenance

Routine maintenance is required periodically based on the site requirements. The
recommended maintenance interval is six months. If any fault is detected, rectify it in time.
Table 7-1 Routine maintenance checklist
Item
Electrical
connection
Preventive
inspection
Grounding
inspection
Issue 10 (2017-08-08)
Maintenance Content
Check That Check
Method
The AC input Using a
voltage is multimeter
normal.
The output
voltage is
normal.
The indicators Visual
are normal. observation
The connection Using a
between the multimeter
ground point
and the ground
bar in the
cabinet is
normal.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
7

Maintenance

Repair When
The AC input
voltage exceeds
the threshold.
The battery low
voltage
disconnection
(BLVD) or load
low voltage
disconnection
(LLVD) voltage
exceeds the
threshold.
Alarms are
generated.
The resistance
between the
ground point
and the ground
bar is greater
than 0.1 ohm.
7 Maintenance
Measures
For details, see
7.2 Rectifying
Common Faults
and 7.3
Identifying
Faults.
Secure or
replace the
ground cable.
43