Electrical Connection
4.4
Specification of Cables
DC cables and RS485 cables of PV power system are equipped with water-proof
direct plug-in connector. You
„
ll find these connectors in the package.
For electrical connection in PV power system, specification of all cables used should
meet following requirements.
Table 4-1 Specification of cables
23
Items
Num
Min. cross area
(mm
2
)
Max. cross area
(mm
2
)
Recommended value
(mm
2
)
DC positive cable
6
4
6
4
DC negative
cable
6
4
6
4
AC
cable
L1 1 6
8
6
L2 1 6
8
6
L3 1 6
8
6
N 1 6
8
6
GND 1
6
8
6
RS485 cable
2
0.75
2
0.75
