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5
Electrical Connection
5.1 Safety Instructions
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 inverter switch and all
switches connected to the inverter are set to "OFF", otherwise electric shock
may occur!
• Ensure that the inverter is undamaged and all cables are voltage free before
performing electrical work.
• Do not close the AC circuit breaker until the electrical connection is completed.
Do not damage the ground conductor. Do not operate the product in the absence
of a properly installed ground conductor. Otherwise, it may cause personal injury
or product damage.
Please use measuring devices with an appropriate range. Overvoltage can damage
the measuring device and cause personal injury.
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. Cables used shall comply with the re-
quirements of local laws and regulations.
• The factors that affect cable selection include rated current, cable type, routing
mode, ambient temperature, and maximum expected line loss.
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