Sungrow SG2K5TL-S, User Manual

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5 Electrical Connection User Manual
30
y
The grid impedance of the AC cable must correspond to the specification to
avoid unintended disconnection from the grid or derating of the output power.
y
The cable cross-sectional areas and recommended value are shown in the
following table, avoiding power loss in the cables of more than 1% of the
nominal power.
Type
Conductor Cross Section(mm
²
)
Outer cable diameter(mm)
Range Recommended Value Range Recommended Value
SG2K5TL-S 4…6 4 10…14 14
SG3KTL-S 4…6 4 10…14 14
SG3K6TL-S 4…6 6 10…14 14
SG4KTL-S 4…6 6 10…14 14
SG4K6TL-D 4…6 6 10…14 14
SG5KTL-D 4…6 6 10…14 14
The AC cables can be Hard-line&flexible wires.
y
Withstand ambient temperature;
y
Layout type (inside wall, underground, free air etc.);
y
UV resistance and so on.
5.4.3 AC Wiring Procedure
Step 1
Loosen all four screws on the AC terminal lid and remove the lid.
Step 2
Unscrew Thread-Lock Sealing Nut, pull out the Waterproof Sealing Insert
from the opening.
Step 3
Strip off insulation layer of all AC cables. The length of strip insulation is
approximate 18mm.