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Modules must be securely attached to the mounting
structure. For clamping system installation, the
recommended maximum compression for each clamp is
2900 PSI (20 Mpa) in order to avoid potential damages
to module frames; follow the instructions provided by
the clamping system supplier.
Avoid exposing the frame to lateral tension and
!
pressure, as this might crush the glass or spark
a fire. Consider the linear thermal expansion of
the frames: the recommended minimum distance
between two modules is 1 cm.
For ground-mounted systems, the minimum distance
recommended from the ground to the module bottom
is at least 60cm (24 inches).
For roof-mounted systems, always ensure the suitability
of the roof construction before installing the modules
on a roof. In addition, any point of roof penetration
required to mount the modules must be properly
sealed to prevent leaks.
Provide adequate ventilation under the modules in
conformity to local regulations. A minimum distance
of 10 cm between the roof plane and the frame of
the module is generally recommended. Never allow
modules to overlap or to exceed the rooftop size.
When installing a module on a pole, select a pole and
module mounting structure that will withstand the
anticipated wind load and snow load for the area.
AEG glass-glass PV modules can be installed with:
•
frame mounting holes and bolts – See 3.2. 1 "Bolting"
•
pressure clamps – See 3.2.2 "Clamping"
3.2.1 Bolting
Always observe the instructions and safety precautions
of the mounting system. Modules must be securely
fixed to the mounting system (support rails) using the
provided mounting holes. There are 4 (four) mounting
holes placed to optimize the load handling capability of
the module and to secure it to the supporting structure.
If increased wind or snow-loads are expected, the
additional mounting holes provided should be used.
It is recommended to use corrosion proof (stainless
steel) hardware. Stainless steel M8 bolts and a
tightening torque of 15-20 N • m are suggested. Please
check with your system designer or installer the specific
load calculations for your plant and refer to figure 3 and
AEG GLASS-GLASS MODULE INSTALLATION MANUAL
figure 5 for details.
Bolt
Flat washer
Flat washer
Spring washer
Nut
Figure 3: Bolting
3.2.2 Clamping
Installation using pressure clamps can be done on both
sides of the module frame. Use at least 4 (four) clamps
per module, two on each long side of the module (for
portrait orientation) or two on each short side of the
module (for landscape orientation). Depending on the
local wind and snow situation, additional clamps might
be required to ensure the module is able to withstand
the load. Module clamps should not come into contact
with the front glass and should not deform the frame.
Ensure to avoid shadowing from module clamps. Please
refer to figure 4 and figure 6 for details.
Bolt
Flat washer
Clamp A
Flat washer
Spring washer
Nut
Clamp B
PV module
Frame
Mounting
rails
Figure 4: Clamping
PV module
PV module
Frame
Mounting rails
Bolt
Flat washer
Flat washer
Nut
Spring washer
EN
GD202008 V1-20
6
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