5 Electrical Connections
5.1 Precautions
When exposed to sunlight, the PV arrays supply DC voltage to the inverter. Before
connecting cables, ensure that all DC SWITCH on the inverter are OFF. Otherwise,
the high voltage of the 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 equipment damage caused by incorrect cable connections is beyond the
warranty scope.
● Only
certied electrician can perform electrical terminations.
● Operation personnel must wear PPE when connecting cables.
● Before connecting cables to ports, leave enough slack to reduce the tension on
the cables and prevent poor cable connections.
SUN2000-(250KTL, 280KTL, 300KTL, 330KTL) Series
User Manual 5 Electrical Connections
Issue 07 (2023-06-30) Copyright © Huawei Technologies Co., Ltd. 40
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