SMA SC 500HE-20 Installation - Manual (Page 26)

6 Preparation for Installation SMA Solar Technology AG
26 SCxxxHE-20-IA-IEN111210 Installation Manual
6.1.4 Requirements for Cable Routing
☐ Cable entries are located in the connection cabinet.
☐ Empty tubes for the cable routing have been laid
under the foundation.
☐ The communication cables are separated from
the AC and DC cables.
☐ An appropriate number of cable entries
is provided:
– AC cables: 3
– DC cables: according to the number of
DC cables
– PE cables: 1
– Communication cables: 1
Figure 10: Cable entries for 9 DC inputs (example)
Laying the cables
This document does not specify at what time the cables are to be laid in the foundation.
The time for laying the cables must be decided individually for the particular plant.
Position Description
A Entry for AC cable
B Entry for DC cable
C Entry for PE cable
D Entry for communication cable