46
Connect the grounding cable to the external grounding points with M10 bolts, where the
recommended cable is of 50 mm
2
to 95 mm
2
.
It is recommended that two points of the inverter should be connected to the ground
system of the PV plant.
The inverter needs to be grounded on site. The following operations should
also be conducted on site:
Measure the electrical conductivity between the device ground terminals and
the total equipotential connection copper bar to ensure the effectiveness of
the internal ground connection.
Perform the external grounding according to on-site situation and instructions
of the plant staff.
The grounding resistance should be no more than 4Ω.
The grounding resistance should be determined according to local standards
and regulations.
Observe the country-specific regulations and standards at all times!
If you have any problems in relation to during the ground cable connection,
contact the related technical personnel in time. Any installations not following
the standards or the installation and alternation without permission may lead to
safety incidents or damage to the devices. Sungrow shall hold no liability for the
damages caused.
System Manual
