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3.3
Wiring
Danger of death from electrocution!
The following points must be respected when carrying out electrical work on
the storage system or on the electrical system during installation:
•
Switch off the storage device.
•
Isolate, disconnect or secure the electrical circuits where work will
subsequently be carried out.
•
Take all necessary precautions to prevent unauthorized ignition.
•
At the end of the operations to secure the storage system and the
circuits involved in the work, actual electrical measurements to
ensure that all the parts in which it will operate will be at a potential
of 0 V.
•
Only personnel with the prerequisites referred to in “
” can
perform electrical work.
Danger of death from electrocution!
The following points must be respected when carrying out electrical work on
the storage system or on the electrical system during installation:
•
This product creates an alternating current of functioning with a direct
component.
•
In order to protect the product from indirect contacts, install a RCD
(residual current device) on each electrical line in alternating current
in output from the storage system.
•
The RCD or RCDs must be of bipolar type, with maximum residual
current equal to 300 mA, class A.
Length of the electrical and data cables
All the electrical and data cables in entry and exit of the storage system must
be checked by qualified technicians in order to respect the electrical
regulations in force.
3.3.1
Preliminary stages
Make sure that all the protections inside the electrical panels are in the OFF position.
Insulate the cables that come down from the PV panels strings.
3.3.2
Ground connection of the storage system
The storage system, being in the first class of IEC overvoltage Category Ratings (Class I), needs to be connected to
the protection conductor of the user's electrical system. The connection must be made on the screw on the back
side of the machine that shows the characteristic symbol of the equipotential bonding to the ground installation.
