Figure 1-1 Wearing an ESD wrist strap
1.3 Inflammable Environment
DANGER
Do not place the device in the environment that has inflammable and explosive air or fog. Do
not perform any operation in this environment.
Any operation of the electrical device in the inflammable environment causes danger.
1.4 Battery
Storage Battery
DANGER
Before handling the storage battery, read the safety precautions for the handling and connection
of the storage battery.
Incorrect operation of storage batteries may cause danger. During operation, ensure the
following:
l Prevent any short-circuit.
BTS3900A GSM
Commissioning Guide 1 Safety Information
Issue 04 (2008-11-20) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd
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