Huawei LUNA2000-2.0MWH Series User Manual page 16

LUNA2000-2.0MWH Series Smart String ESS
User Manual
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Grounding Requirements
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AC and DC Power
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Safety Requirements in Maintenance and Repair
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Issue 08 (2022-11-15)
Select cables that comply with local laws and regulations.
A fire suppression system is equipped. Do not press the extinguishant release
button in non-emergency situations.
The positions where cables are routed through pipes or holes must be
protected to prevent the cables from being damaged by sharp edges or burrs.
Ensure that the cables are properly connected and insulated, and meet
specifications.
After cables are connected, secure them using cable supports and cable clips.
Ensure that the cables in the backfill area are in close contact with the ground
to prevent cable deformation or damage during backfilling.
When the temperature is low, violent impact or vibration may damage the
plastic cable sheathing. To ensure safety, comply with the following
requirements:
– Cables can be laid or installed only when the temperature is higher than
0°C. Handle cables with caution, especially at a low temperature.
– Cables stored at subzero temperatures must be stored at room
temperature for at least 24 hours before they are laid out.
Do not damage the ground conductor.
Do not work on the equipment in the absence of a properly installed ground
conductor.
For the equipment that needs to be grounded, install the ground cable first
when installing the equipment and remove the ground cable last when
removing the equipment.
The main grounding body of the equipment must be permanently connected
to the grounding grid. Before working on the equipment, check its electrical
connections to ensure that it is reliably grounded.
Before installing or removing a power cable, turn off the power switch.
Before connecting a power cable, check that the label on the power cable is
correct.
If the equipment has multiple inputs, disconnect all the inputs before
operating the equipment.
Before connecting or removing cables, turn off the protection switch of the
corresponding loop.
Place a warning sign indicating that the switch must not be turned on at the
position where the switch resides.
Use an electroscope of a proper voltage level to check whether the equipment
is energized and ensure that the equipment is completely powered off.
If charged bodies are found nearby, block or wrap them with insulation plates
or insulation tapes.
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1 Safety Information
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