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6
Electrical Installation Guidance
6.1 Cable Requirements
According to the capacity allocation requirement of single BD 30-150kW-P inverter, it is
suggested that the current passing through 1mm^ 2 conductor should be no more than 3A,
and the same size and type of conductor should be selected for the connection on the same
side. The reference requirements for various types of interface cables are given by us .
Users can design relevant cables according to the table below. Cables shall be designed in
accordance with the instructions in this section and local wiring regulations, taking into
account environmental conditions.
Table 6-1 Specifications of power cables for the inverters
Type
capacity
Type capacity
Zero line
Ground
wire
Positive and negative DC
input (per pole)
30KW
≥25
𝑚𝑚
2
×3
≥25
𝑚𝑚
2
≥16
𝑚𝑚
2
input 50
𝑚𝑚
2
50KW
≥35
𝑚𝑚
2
×3
≥35
𝑚𝑚
2
≥16
𝑚𝑚
2
input 70
𝑚𝑚
2
100KW
≥50
𝑚𝑚
2
×3
≥50
𝑚𝑚
2
≥25
𝑚𝑚
2
input 95
𝑚𝑚
2
250KW
≥120
𝑚𝑚
2
×3
≥120
𝑚𝑚
2
≥50
𝑚𝑚
2
2-way input 120
𝑚𝑚
2
500KW
≥185
𝑚𝑚
2
×3
≥185
𝑚𝑚
2
≥95
𝑚𝑚
2
4-way input 120
𝑚𝑚
2
630KW
≥240
𝑚𝑚
2
×3
≥120
𝑚𝑚
2
≥120
𝑚𝑚
2
4-way input 120
𝑚𝑚
2
Before wiring operation, confirm that both the municipal power input and BAT input switches
are disconnected, and affix warning signs to prevent others from operating the switches.
Power cables need trenches or metal trenches to avoid mechanical damage.
Or cause radio frequency interference to peripheral equipment.
The cable dimensions provided in this table are for reference only. The actual selection should be based
on the working environment temperature, laying method, heat dissipation conditions and so on.
WARNING
WARNING
