Maintenance Of Power Supply System And Grounding System Of The Bts3702E; Maintenance Of Bts3702E Main Equipment - Huawei DBS3900 WiMAX Maintenance Manual

2 Tasks of Routine Hardware Maintenance
2.1 Maintenance of Power Supply System and Grounding
System of the BTS3702E
This section describes the maintenance tasks, maintenance frequency, operation guidance, and
reference standard of the power supply system and grounding system of the BTS3702E.
Table 2-1
BTS3702E.
Table 2-1 Maintenance tasks for the power supply system and grounding system of the
BTS3702E
Item
Power cable
Voltage
PGND cable
Earth resistance

2.2 Maintenance of BTS3702E Main Equipment

The maintenance tasks of the BTS3702E equipment include checking the surface of the
equipment, cleanness of the equipment, and indicators.
Table 2-2
2-2
lists the maintenance tasks of the power system and grounding system of the
Frequency
Monthly
Monthly
Monthly
Monthly
lists the maintenance tasks of the BTS3702E.
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Site Maintenance Guide (Draft)
Operation
Carefully check the
connections of power
cables.
Measure the voltage
of the power supply
using a multimeter.
Check whether the
PGND cable and
ground bar are
connected securely.
Measure the earth
resistance using an
electric earth
resistance tester and
record the
measurement.
DBS3900 WiMAX
Standard
The power cables are
not aging, and there
is no corrosion on the
joints.
Operating voltage
range: -36 V DC to
-57 V DC.
The joints are secure
and corrosion free.
The grounding
resistance is lower
than 10 ohms.
Issue 01 (2009-11-30)