Huawei BBU3806 Installation Manual page 11

Installation Manual - Hardware Installation
BBU3806 WCDMA Base Band Unit
3.2 Power Cable
Caution:
Never install or remove electrified power cables. Electric spark or arc may result from
contact of power cable with conductors, causing fires or eye injury.
Be sure to turn off power before installing and removing power cables.
Before connecting cables, make sure that the cables and cable tags are correct.
3.3 Fuse
Caution:
Never install or remove electrified fuses.
Only technicians qualified for high-voltage operations can install or remove
fuses.
Be sure to switch off power before replacing AC fuses.
3.4 Tools
Warning:
High-voltage and AC operations call for special tools instead of general-purpose or
makeshift tools.
3.5 Drilling Holes
Warning:
Do not drill on the cabinet at will. Improper drilling may damage cables inside the
cabinet. The metal filings resulting from the drilling may fall into the cabinet and
short-circuit the circuit board.
Wear insulated gloves and move away the cables inside the cabinet.
Huawei Technologies Proprietary
5
Safety Precautions