Growatt New Energy.CO.LTD
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0.6m or more, the top 0.6m or more to ensure easy installation, cooling and maintenance.
Figure 4-1-1 required Clearance space
[Cable trench]
The cable connection of inverter adopts bottom inlet and bottom outlet. Cable trenches are
recommended.
The cable trenches are often designed and constructed by the construction side based on relevant
standards, with the equipment weight and dimensions required to be considered. Good electrical
connection is needed between different cable trenches and GND terminals.
[Wiring specification]
Cables in the inverter can be classified into either power cables or data cables.
In cabling, the power cable shall be kept far away from, and the cable shall be kept in right angle
at cross. The cable shall be as short as possible, and an appropriate distance shall be kept to the
power cable. We suggest the DC PV+ and PV- insulation resistance is more than Vmax PV/30mA.
The power cable and data access shall be placed in different cable trenches respectively to avoid
lengthy routing between the power cable and other cables, so as to reduce the electromagnetic
interruption caused by sudden change of the output voltage. The distance among the power cable
and data access shall be more than 0.2m. When the cables are crossed, the cross angle shall be 90
degrees, while the distance can be reduced appropriately.