2 Routine Maintenance
Safety requirements in maintenance and repair:
● Before connecting or removing cables, turn o 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
o.
● If charged bodies are found nearby, block or wrap them with insulation plates
or insulation tapes.
● Before performing maintenance or repair, securely connect the loop to be
repaired to the main ground loop using a ground cable.
● After the maintenance or repair is complete, remove the ground cable between
the loop that has been maintained and the main ground loop.
2.1 Preparations Before Maintenance
This section lists only personal protective equipment (PPE). For details about the tools
required for replacement, see the specic parts replacement section.
Insulated gloves Protective gloves Goggles
Dust mask
LUNA2000-200KWH-2H1 Smart String ESS
Maintenance Manual 2 Routine Maintenance
Issue 02 (2023-02-28) Copyright © Huawei Digital Power Technologies Co., Ltd. 21