14
The screw should be fixed at the following locations for different installation methods and mechanical
loads.
Module type
Maximum load
Module type
Maximum load
Mounting rails run parallel to the short side frame.
Distance between mounting holes is 1400 mm.
Distance between mounting holes is 1100 mm (for
DE09/DE09.05/DE09.08 only).
Mounting rails run parallel to the long side frame.
Distance between mounting holes is 1400 mm.
DE09
DE09.05
DE09.08
Uplift load ≤ 4000 Pa
Downforce load ≤ 6000 Pa
DEG18MC.20(II)
Uplift load ≤ 2400 Pa
Downforce load ≤ 5400 Pa
DE18M.08(II)
Uplift load ≤ 2400 Pa
Downforce load ≤ 6000 Pa
DEG19C.20
DEG20C.20
DEG21C.20(II)
Uplift load ≤ 2400 Pa
Downforce load ≤ 3600 Pa
DE18M(II)
DEG18MC.20(II)
DEG19C.20
DE19
DE20
DEG20C.20
DE21
DEG21C.20
Uplift load ≤ 2400 Pa
Downforce load ≤ 5400 Pa
6.2.2
CLAMP INSTALLATION
Trina Solar has tested its modules with a number of clamps from different manufacturers, it is
recommended to use fixing bolt of at least M8.
The clamp should have length of ≥50 mm (1.97 inch)
with thickness of ≥3 mm (0.12 inch). The clamp shall not be malfunctioned due to deformation or
corrosion during the loading process.
The clamp must overlap the module frame by at least 7 mm (0.28 in) but not more than 10 mm (0.39
inch).
Modules clamps should not come into contact with the front glass and must not be deformed.
Please make sure to avoid shading effects from the module clamps.
The module frame shall not to be modified under any circumstances.
When choosing clamp installation method, use at least four clamps on each module, two clamps
should be attached on each long sides of the module (for portrait orientation). Depending on local
wind and snow loads, additional clamps may be required to ensure that modules can bear the extra
load.
Applied torque should refer to mechanical design standard according to the bolt customer is using,
for example: M8: 16-20 N.m (140-180 lbf.in)
