Maintenance; Routine Maintenance - Huawei ETP4830-A1 User Manual

ETP4830-A1
User Manual

7.1 Routine Maintenance

Maintain the ETP4830-A1 periodically based on site requirements. The recommended
maintenance interval is six months.
Table 7-1 Routine maintenance checklist
Item
Electrical
connection
Preventive
inspection
Grounding
inspection
Issue 06 (2014-02-20)
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.
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7

Maintenance

Repair When
The AC input
voltage does
not fall between
210 V AC and
230 V AC.
The battery low
voltage
disconnection
(BLVD) or load
low voltage
disconnection
(LLVD) voltage
does not fall
between -42 V
DC and -58 V
DC.
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.
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