PANEL HANDBOOK aH72 SK
V 6.0
23
/ 31
During installation, protect the hybrid solar panels from sunlight because, when solar radiation
comes in contact with the surface of the panel, it will produce electrical energy. Only qualified
technicians should install or perform maintenance work on the panels. For maintenance work,
the panels should be properly covered.
It’s recommended that the panels are covered until the installation is completely finished and
the relevant safety tests have been carried out. This includes hydraulic filling and tightness
testing and leaving the installation running with water circulation, as well as electrical
connections.
IMPORTANT: the cover does not completely prevent the panel from having a DC voltage with
solar radiation.
Do not touch bare terminals with your bare hands. Use insulated tools for electrical
connections.
If batteries are installed, follow the manufacturer's recommendations.
Under normal conditions, a photovoltaic panel is likely to experience conditions that produce
more current and/or voltage than reported under standard test conditions. Therefore, the Short
Circuit Current (I
SC
) and Open Circuit Voltage (V
oc
) value marked on this panel should be
multiplied by 1.25 when determining component voltage ratings, conductor current ratings,
fuse sizes, and the size of controls connected to the PV output.
Do not connect any other devices (antennas, pipes, ducts, etc.) to the panel structure.
5.2
Installation Guidelines
5.2.1
Wiring and connection
Note
:
Connect the conductors between the PV panels in series or parallel connection. This will be
determined by the DC input characteristics of the inverter to be installed.
The total voltage of the strings must not exceed the nominal working voltage of the selected inverter.
5.2.2
PV Voltage and String Voltages
Standard PV systems for self-consumption installations have maximum voltages of 1000V and
recommended working ranges between 300 and 800V. In this case, the use of properly selected cables,
connectors and cabinets for this type of system, together with controlled installation techniques
carried out by qualified personnel, is of fundamental importance so that work is carried out with full
safety guarantees.
External cables must be stable to UV rays and water resistant.
It is recommended that, once the panels have been connected together, the cables should not hang by
their own weight and should be fixed to the structure itself. The mechanical stress generated by the
