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5
Electrical Connection
5.1 Safety Precautions
The PV string will generate lethal high voltage when exposed to sunlight.
• Operators must wear proper personal protective equipment during electrical
connections.
• Must ensure that cables are voltage-free with a measuring instrument before
touching DC cables.
• Respect all safety instructions listed in relevant documents about PV strings.
Before electrical connections, please make sure that the optimizer is not damaged.
Otherwise, it may cause danger!
Before electrical connections, please make sure that all switches connected to the
optimizer are set to "OFF". Otherwise, electric shock may occur!
The optimizer does not support hot plugging. Do not plug in and out the optimizer
with power on. Otherwise, the optimizer may be damaged!
Please check the cable wiring of input and output terminals of each optimizer. If
there is a reversed connection, correct it in time. Only proceed to create and acti-
vate a plant after confirming that there is no reversed connection. Otherwise, the
optimizer wrongly connected may be damaged if the plant is activated, and the da-
mage caused is not covered by the warranty.
Damage to the product caused by incorrect wiring is not covered by the warranty.
• Electrical connection must be performed by professionals.
• Operators must wear proper personal protective equipment during electrical
connections.
• All cables used in the PV generation system must be firmly attached, properly
insulated, and adequately dimensioned.
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