Huawei BBU3900 User Manual page 15

BBU3900 GSM
User Guide
Device Safety
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1.2 Electricity Safety
High Voltage
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Thunderstorm
The following requirements are suitable only for the wireless base station or the device with an
antenna or GPS antenna.
In a thunderstorm, do not perform operations on high voltage and AC power supply facilities or
on a steel tower and mast.
High Electrical Leakage
Ground the device before powering on the device. Otherwise, the personnel and device are in
danger.
Issue 04 (2008-09-05)
Before operation, the device must be secured on the floor or other fixed objects, such as
the walls and the mounting racks.
Do not block ventilation openings while the system is running.
When installing the panel, tighten the screw with the tool.
DANGER
The high voltage power supply provides power for running the system. Direct contact with
the high voltage power supply or contact through damp objects may result in fatal danger.
Non-standard and improper high voltage operations may result in fire and electric shock.
The personnel who install the AC facility must be qualified to perform operations on high
voltage and AC power supply facilities.
When installing the AC power supply facility, follow the local safety regulations.
When operating the AC power supply facility, follow the local safety regulations.
When operating the high voltage and AC power supply facilities, use the specific tools
instead of common tools.
When the operation is performed in a damp environment, ensure that water is kept off the
device. If the cabinet is damp or wet, shut down the power supply immediately.
DANGER
CAUTION
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