SMA TCS 500-SC - Manual (Page 18)

7 Electrical Connection SMA Solar Technology AG
18 TCS-IT-IEN103610 Installation Manual
7.2 Laying cables
7.2.1 Running Cables between the Low-Voltage Switchgear and
the Inverter
☐ The AC cables are 3-phase cables.
☐ Between the low-voltage switchgear and the inverter there are three separate cable runs for the
AC cables, e. g. cable channels.
☐ The spacing between the cable runs must be at least twice the diameter of an AC cable.
Figure 6: Arrangement of AC cables with three cables per line conductor (example).
• Run the cables as described.
Maintain cable clearances
Run an L1, L2 and L3 line conductor in each cable run. The spacing between the cable pairs
must be at least twice the diameter of a cable. This prevents current imbalances.
L2
L1 L3
L2
L1 L3
L2
L1 L3
1d
>2d -- >2d --