Grounding And Lightning Protection - DUALSUN FLASH Instrucciones De Instalación, Operación Y Mantenimiento

The maximum rating of a fuse connected in series with a cell string is typically 15A, but the actual module specific
rating can be found on the product label and in the product datasheet.
Diodes that are used as blocking diodes must have a:
- Rated Average Forward Current [IF(AV)] above the maximum system current at the highest module operating
temperature.
- Rated Repetitive Peak Reverse Voltage [VRRM] above the maximum system voltage at the lowest module
operating temperature.

4.3 Grounding and lightning protection

The evaluation and design of the grounding system and lightning protection of PV installations
must be carried out by trained and qualified personnel. Refer imperatively to applicable local
regulations to meet all specific requirements.
The DualSun modules must be grounded. The grounding can be carried out through the holes
made for this purpose in the framework of each module. These holes are used to attach the
grounding cable and connect it to the equipotential link.
It is necessary to ensure that the grounding is carried out with the appropriate connections
(stainless steel), to avoid anodizing or oxidation of the module frame at the level of the drilling
intended for grounding. The grounding device must be in good contact with the aluminium frame
of the module.
To obtain the optimum output power, DualSun recommends that the negative poles of the DC circuit
of the module group be grounded.
The frame of the DualSun panels comes with two earthed holes at each corner of the frame.
Avoid direct contacts between aluminium and copper by using an intermediate metal such as stainless steel or tin.
Installation, use and maintenance instructions - DualSun FLASH
V1.3 – April 2020
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