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5.1. Safety instructions
Electrical connection must only be operated on by professional technicians. Operators must be aware that
the inverter is a bi-power supply equipment. Before connection, necessary protective equipment must be
employed by technicians including insulating gloves, insulating shoes, and safety helmet.
• Dangerous to life due to potential fire or electricity shock.
• Do not install the inverter near any inflammable or explosive items.
• Dangerous to life due to potential fire or electricity shock.
• When it is powered on, the equipment should in conformity with national rules and regulations.
• The direct connection between the inverter and high voltage power systems must be operated by
qualified technicians in accordance with local and national power grid standards and regulations.
• The PV arrays will produce a DC voltage when exposed to sunlight.
• Any improper operation during cable connection can cause device damage or personal injury.
• Electrical connection should in conformity with proper stipulations, such as stipulations for cross-
sectional area of conductors, fuses, and ground protection.
• The overvoltage category of the DC input port is II and that of the AC output port is III.
5.2. Connect the grounding cable
About this task
This additional grounding cable must be connected before other electrical connection.
The cable needs to be prepared by the user. It is recommended to use a cable with a 6 mm² conductor
cross-sectional area.
Note: The inverter cannot be used with functionally earthed PV Arrays.
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