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6.4 Connecting The Ground Cables
In this solar system all the unloaded metal components and cases should be
connected to the ground.
Single inverter need grounding over a PE point, multiple inverters need connect all
the inverter PE cable and solar panels shelves to the same grounding point to achieve
equipotential.
The grounding steps as following:
Take out the ground screw at the inverter bottom, connect the ground cables as
following figure.
Notice: 1.The machine is safely separated from the lightning protection and the
distance is as far as possible.
2.Do not expose Grounding terminal in the air and precaution for the rain.
3.When you lock the case ground screw, the torque force should be 60kgf·cm.
According to the relevant provisions of IEC 61643-32 "Connecting to photovoltaic
devices surge protectors - selection and use of guidelines", whether for household or
outdoor photovoltaic power plants, it is necessary to ensure the implementation of
lightning protection measures for photovoltaic systems:
The lightning protection measures for photovoltaic systems shall be
carried out in accordance with the corresponding national standards and
IEC standards. Otherwise, photovoltaic devices such as components,
inverters and power distribution facilities may be damaged by lightning.
In this case, the company does not carry out warranty and assumes any
responsibility.
Fig 6.9
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编号：GR-UM-C -00
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