4
Preparing Cables
3.1
•
Connect cables in accordance with the local installation laws and regulations.
•
Before connecting cables, ensure that the DC switch of the solar inverter and all the switches
connected to it are set to OFF. Otherwise, the high voltage produced by the solar inverter
may cause electric shocks.
3
Connecting Cables
No. Cable
Type
Conductor Cross-
Sectional Area Range
Outer Diameter
1
Protective earthing
(PE) cable
Single-core outdoor
copper cable
3.5–5.5 mm
2
N/A
2
AC output power
cable
Three-core (U, O, and
W) outdoor copper
cable
3.5–5.5 mm
2
10–21 mm
3
DC input power
cable
Standard outdoor PV
cable in the industry
3.5–5.5 mm
2
5.5–9 mm
4
Signal cable
Outdoor shielded
twisted pair cable
0.20–1 mm
2
Four-hole rubber
plug: 4–8 mm
Two-hole rubber
plug: 8–11 mm
Prepare cables based on site requirements.
Installing the PE Cable
3.2
Ground
point
•
Silica gel or paint be applied around the ground terminal after the PE cable is connected.
•
It is recommended that the right ground point be used for grounding. The other ground point
is reserved.
