6
InstallatIon and oPERatIon ManUal FoR sl2 solaR ModUlEs oF tHE GEnERatIon G2.1 and G2.2
requirements on the clamping system for unframed modules
only clamp systems approved by Solibro may be installed. The
list of all approved clamps is available at www.solibro-solar.com.
on request, Solibro can test clamp systems and approve them
following successful testing.
¼
All contact between the metal of the clamps and the module
glass must be prevented.
¼
use a suitable silicone-free rubber support plate between the
module and the substructure or clamps. The plate must be at
least 3 mm thick on the sides that are in contact with glass.
¼
The rubber mixture used as insulation material must have a
volume resistivity of at least 1*10
14
Ω*cm,inaccordancewith
ASTM D257.
¼
The material hardness of the rubber support plate should lie
between 45 and 75 on the Shore A scale.
¼
Ensure that the rubber mat is in place completely and does
not slip.
¼
The rubber support plate must be uv and aging resistant for
at least 25 years.
¼
Clampwidth:≥120mm.
¼
The clamp height of 7.3 mm (module thickness), including the
compression of the EPDM rubbers, may not be fallen short of
in the mounted state.
¼
clamps must not throw a shadow on the active cells.
Distancefromtheglassedgetothefirstactivecell
amounts to 16.5 mm (Fig. 3).
¼
comply with the glass inset (Fig. 3):
10–15 mm on the top side of the module
12–16 mm on the bottom side of the module
¼
comply with the side clearance between the edge of the glass
and the inner side of the clamps:
> 1 mm at 25 °c for thermal expansion of the module (Fig. 3)
Ensure that the screw connection does not apply any
additional tension to the module. The modules must be po-
sitionedstrainlessandfloat-mounted.Thescrewbetween
theglass/glassmoduleandtheclampshouldbetightened
with the recommended torque of 8 to 10 nm.
¼
See applicable documents “List of approved clamps and
mounting systems”
Fig. 3
clamping of unframed modules
10–15
12-16
16.5
7.3
±
0.5
> 1
clamp (schematic)
Glass (module top side)
Rubber
Glass (module bottom side)
Active surface
2 plannIng
All measurements in mm.
