Huawei BBU3806 Installation Manual page 14

Installation Manual - Hardware Installation
BBU3806 WCDMA Base Band Unit
3.9 Leakage Current
Warning:
To avoid large leakage current, ground the equipment before powering it on.
Before connecting the AC input power supply, be sure to connect the
protection-grounding terminal of the equipment housing with the earth. The purpose is
to avoid the electric shock on human body resulting from leakage current. The
leakage current is caused by the EMI filter earth capacitance of the equipment AC
power supply input terminal and the Y capacitance of the primary power supply.
3.10 Flammable Air
Danger:
Do not place the equipment in an environment with flammable, explosive air or smog.
Never operate any digital equipment in this environment.
It is extremely dangerous to operate any digital equipment in this environment.
4 Microwave and Magnetic Field
4.1 Introduction
Antennas in service generate electromagnetic radiation. Standing too close to the
antenna is against the safety codes.
Only trained professional people can install and maintain antennas.
The radiation design of the equipment should meet the IEEE C95.1-1991
recommendation.
When working near a full-power transmitting antenna, keep the following safety
regulations in mind.
Huawei Technologies Proprietary
8
Safety Precautions