3 Installation
PV Grid-tied Inverter SPI-B X2 Series (8K-25K)
User Manual
20
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Tech Co., Ltd.
Step 1
Strip the insulation layer of the grounding wire by wire stripper,, and crimp it into the equipped round
terminal, as shown in Figure3-13.
Figure3-13
Crimp the grounding wire (unit: mm)
Step 2
Connect the crimped grounding wire to the external grounding terminal at the side of the inverter by
equipped stainless steel combination bolt M5*12, as shown in Figure3-14.
Figure3-14
External grounding connection
In order to improve the anti-corrosion performance of the external grounding terminal, it is
recommended to paint anti-rust paint on the external grounding terminal after finishing the external
grounding connection.
The grounding of inverter mustn't connect with the grounding of the lighting rod of the building
where the inverter installs. It should separate them (as shown in Figure3-15), or the lightning stroke
will damage inverter.
The grounding of the inverter should be directly connected to the grounding system, and the
impedance should be less than 20mΩ.
Summary of Contents for SPI-B X2 Series
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