Studer VarioString VS-70 - 12 Wiring Examples; Variostring + RCC-02; Comments on the Wiring Examples 12.1

Studer Innotec SA
VarioString
50 V 2.3 User manual
12 WIRING EXAMPLES
12.1 VARIOSTRING + RCC-02
12.2 COMMENTS ON THE WIRING EXAMPLES 12.1
Elem.
Description
Refer to
a
Remote control
See chap. 10.1, 9.2
b
Battery
See chap. 4.2
d
Lightning protection device
See chap. 4.5
e
Communication cable
See chap. 4.6
f
DC protection device
See chap. 4.2.3
T
Protective earth
*Main protective earth/protective equipotential bonding
connected to the conductive and accessible parts of the
building and if possible, connected to a standard earth
electrode.
T1
Protective earth for the
equipment
*The equipment is designed to be connected to a
protective earth (Class I) to which they must be connected.
T2
Protective earth for the
battery
*One of the battery poles must be earthed. The other
configurations must meet the recommendations at chap.
4.3.8
T3
Protective earth for the solar
generator
*The protective earth for the PV generator and its lightning
protection device are connected separately to the main
protective earth (local equipotential bonding).
A
Independent connection
For two different PV strings, each with voltage up to 600V
and independent MPPTs
B
Connection in parallel
For two different PV strings, each with voltage up to 600V
C
Connection in series
For a single PV string with voltage up to 900V
* National installation standards specific to the chosen application field must absolutely and as a
priority be respected under the installer’s responsibility.