11
Installing a Ground Cable
4.3
No.
Cable
Type
Conductor Cross-
Sectional Area
Range
Outer Diameter
1
Ground cable
Single-core outdoor
copper-core cable
8 mm
2
N/A
2
DC input power cable
(inverter to battery
and battery to battery)
Common outdoor PV
cable in the industry
3.5–5.5 mm
2
5.5–9 mm
3
Signal cable (inverter
to battery and battery
to battery)
Outdoor shielded
twisted pair cable (8
cores)
0.20–1 mm
2
6.2–7 mm
Routing Cables Out of the Cable Hole
4.2
Before connecting external cables, route
the cables through the cable hole to avoid
disconnecting after installation.
Prepare cables based on site requirements.
•
Ground a ground point of the power control module.
•
Apply silica gel or paint around the ground terminal after the ground cable is connected.
Power control module
•
Before connecting cables, ensure that the DC switch on the battery and all the switches
connected to the battery are set to OFF. Otherwise, the high voltage of the battery may result
in electric shocks.
•
The DC input power cable and signal cable between the battery and the inverter must be less
than or equal to 10 m.
