5 Electrical Connections
5.1 Precautions
● After the PV array receives solar irradiance, it transmits the DC voltage to the
solar inverter. Before connecting cables, ensure that the three DC switches on
the solar inverter are set to OFF. Otherwise, the high voltage of the solar
inverter may result in electric shocks.
● The site must be equipped with
qualied re ghting facilities, such as re
sand and carbon dioxide re extinguishers.
● Wear personal protective equipment and use dedicated insulated tools to avoid
electric shocks or short circuits.
● The device damage caused by incorrect cable connections is beyond the
warranty scope.
● Only qualied technicians can perform operations about electrical connection.
● Wear proper PPE at all time when connecting cables.
● To prevent poor cable connection due to overstress, leave enough slack before
connecting the cables to the appropriate ports.
● Stay away from the equipment when preparing cables to prevent cable scraps
from entering the equipment. Cable scraps may cause sparks and result in
personal injury and equipment damage.
SUN2000-(100KTL, 110KTL, 115KTL)-M2
User Manual 5 Electrical Connections
Issue 07 (2023-04-30) Copyright © Huawei Technologies Co., Ltd. 41
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