TP48200E-H12C1 (Nepal, Ncell)
User Manual
1 Safety Precautions
Issue 01 (2015-05-05)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
2
AC and DC Operation Requirements
The power system is powered by high-voltage power sources. Direct or indirect contact
(through damp objects) with high-voltage power sources may result in serious danger.
Non-standard and improper operations may result in fire and electric shocks.
Before electrical connections, turn off the upstream protection switch for the device.
Before connecting the AC power supply, ensure that electrical connections are complete.
Before you connect cables to loads or battery cables, check cable and terminal polarities,
preventing reverse connections.
ESD Requirements
To prevent electrostatic-sensitive components from being damaged by the static on
human bodies, wear a well-grounded ESD wrist strap or gloves when touching circuit
boards.
When holding a board, hold its edge without components. Do not touch chips.
Removed boards must be packaged with ESD packaging materials before storage and
transportation.
Liquid Prevention Requirements
Place this product far away from areas with liquid. Do not place the product under
positions prone to leakage, such as air conditioner vents, ventilation vents, and feeder
windows of the equipment room. Prevent liquid from entering the inside of the device to
avoid short circuits, and ensure that there is no condensation inside the equipment room
or device.
If detecting any liquid inside the device, immediately disconnect the power supply and
contact the administrator.
1.3 Battery Safety
Before installing, operating, and maintaining batteries, read the instructions provided by the
battery vendor. The safety precautions in this document are for special attention. For more
safety precautions, see the instructions provided by the battery vendor.
Basic Requirements
Before installation and maintenance, wear goggles, rubber gloves, and protective clothes
to prevent injury caused by electrolyte overflow.
When handling a battery, ensure that its electrodes are upward. Leaning or reversing
batteries is prohibited.
Keep the battery loop disconnected during installation and maintenance.
Secure battery cables to a torque specified in battery documentation. Loose connections
will result in excessive voltage drop or cause batteries to burn out when the current is
large.