LIVOLTEK Hyper-2000 - External Grounding (PE Cable) Connection

30
6.2 External Grounding (PE Cable) Connection
6.2.1 External Grounding Requirements
Good grounding for the inverter helps resist the impact of surge voltage and improve the EMI
performance. Connect the PGND cable before connecting the AC power cables, DC power
cables, and communication cables.
WARNING
• Ensure that the PE cable is securely connected. Otherwise, electric shocks may occur.
• Do not connect the neutral wire to the enclosure as a PE cable. Otherwise, electric shocks
may occur.
NOTICE
• The PE point at the AC output port is used only as a PE equipotential point, and cannot
substitute for the PE point on the enclosure. Make sure the two terminals are both
grounded reliably.
• It is recommended that silica gel or paint be used around the ground terminal after the
PE cable is connected.
6.2.2 Wiring Connection Procedure
The PE cable should be prepared by customers. Recommended specifications:
• Type: Outdoor single-core copper wire.
• Conductor cross-sectional area: 4-6mm²
Step1: Crimping OT terminals
• Prepare the cable and remove an appropriate length of the insulation layer from it.
• Insert the exposed core wires into the crimping areas of the OT terminal and crimp them
using hydraulic pliers.
Step2: Connecting the PE Cable
• Remove the screw on the
grounding terminal on the side
of the inverter and fasten the
cable with a screwdriver.
• Apply paint to the grounding
terminal to ensure corrosion
resistance.