6.4.2 Inverters
The choice of inverter will be determined by the
project manager in accordance with the project’s
specifications and requirements while always keeping
in mind and complying with local regulations regarding
the generation of electrical energy in isolated systems
or those connected to the public power grid.
The inverter must be located as near as possible
to the property’s main switchboard, or very close
to the meter, while always being kept out of direct
sunlight.
Modifications to the aforementioned system must be
carried out under the supervision of the project manager.
6.4.3 Cables and Connectors
To prevent overheating of cables and connectors,
the choice of the cross section of the cables
and the capacity of the connectors mus t b e
c o n t i n g e nt upon the maximum short circuit
current of the system. The recommended
cable to ensure complete safety is a
photovoltaic cable with a cross section of
4 sq. mm.
Tejas Borja supplies
SOLAR FLAT-5XL ceramic
roof tiles
with connectors used for electrical
connections in the system. The recommended
connectors are Multi-Contact MC4 or equivalent. To
correctly connect the Multi-Contact MC4 connectors,
they must be pushed together until you hear a click.
The cable bend radius must be at least six times the exterior
diameter of the cable.
All the cabling in the installation must be appropriate
for photovoltaic installations in accordance with
current regulations.
To make connections in parallel, Multi-Contact MC4
connectors or equivalents must be used, whether you
are using string connectors or Y connectors.
6.4.4 Obligatory safety features (*)
Fuses
- Protection against reverse current. A string
fuse must be installed between the inverter and
SOLAR FLAT-5XL ceramic roof tiles
.
Thermal magnetic circuit breaker
- Protection
against short circuits and overloads in the system.
It must be installed between the inverter and
the property’s electrical system.
Residual current device (RCD)
- Protection
against contact with live parts of the installation or
leakage due to lack of insulation. It must be installed
between the inverter and the property’s electrical
installation.
* According to current regulations in Spain. Please consult local
regulations for each project.
6.4.5 Optimizers
Due to the characteristics of the
SOLAR FLAT-5XL
ceramic roof tiles
, the use of optimizers in their
installation is unnecessary.
6.4.6 Seccionadores CC
Should it be necessary, the type and specifications
of the DC isolator switch breaker will be determined,
along with its location in the specified string.
In the event an isolator switch breaker is used, check
that the voltage and the current of the isolator switch
breaker meet the requirements of the installation.
You must ensure that the isolator switch breaker is
correctly located and labelled.
6.4.7 Batería
In the case of an autonomous installation with a storage
system, batteries must be correctly connected to each
other and to the property’s electrical circuit through
a regulator or an inverter/charger.
These batteries must also be large enough to supply
sufficient electricity to the property for the desired number
of days the property needs to be powered by the
electricity stored in the batteries in the event of adverse
weather events which impede the proper operating of
the
SOLAR FLAT-5XL ceramic roof tile
array.
Example of a string connector
Example of a Y connector
The largest ceramic tile ever made
High performance in installation (5 units/sq. m.)
Wide range of finishes
(BorjaJET exclusive)
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