Mechanical Mounting - Unframed Modules - Q CELLS SL Series Installation And Operation Manual

5.2 MECHANICAL ASSEMBLY - UNFRAMED MODULES
CLAMP SYSTEMS
FIGURE 3: Clamp overlap of glass edge on the module top side (10-15 mm) and module underside (≥ 12 mm),
distance between glass edge and inner side of clamps (> 1 mm)
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INSTALLATION AND OPERATION MANUAL FOR CIGS SOLAR MODULES Q-CELLS SE
Only install clamp systems approved by Q-Cells. Failure to do so will void the warranty. A list
of released clamp systems can be furnished upon request to Q-Cells.
Upon request, Q-Cells can test clamp systems and release them for use upon successful test-
ing.
GENERAL REQUIREMENTS OF THE CLAMP SYSTEM:
• Ensure that the threaded connections do not generate extra stress on the module. The
modules are positioned "floating".
• Don't attach the metal clamps directly to the glass.
• Use a suitable, silicone-free rubber support between the module and the substructure or
clamps.
• Adjust the clamp height to the module thickness.
• Clamp width (Figure 2): ≥ 70 mm
• Ensure that the clamps do not throw shadows onto the active cells. The distance from the
glass edge to the first active cell amounts to 18.5 mm (Figure 3).
• Clamps overlap of glass edge (Figure 3):
· 10 mm to 15 mm on the top side of the module
· ≥ 12 mm on the module underside
• Distance at the side between the glass edge and inner side of the clamp > 1 mm at 25 °C
(Figure 3) to allow for thermal expansion of the module
10–15
≥ 12
18.5
> 1
1
3
2
4
1 Clamp (schematic)
2 Rubber
3 Glass (module top side)
4 Glass (module underside)
5 Active area
5